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1010501010101 = 1191863728191
BaseRepresentation
bin11101011010001101000…
…11011100001010110101
310120121021112221000021002
432231012203130022311
5113024001224310401
62052115011333045
7133002104602562
oct16550643341265
93517245830232
101010501010101
1135a607527240
12143a128b1185
137439ca02a9b
1436ca0d45869
151b4435dba6b
hexeb468dc2b5

1010501010101 has 4 divisors (see below), whose sum is σ = 1102364738304. Its totient is φ = 918637281900.

The previous prime is 1010501010089. The next prime is 1010501010161. The reversal of 1010501010101 is 1010101050101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1010501010101 - 214 = 1010500993717 is a prime.

It is a super-2 number, since 2×10105010101012 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (11), and also a Moran number because the ratio is a prime number: 91863728191 = 1010501010101 / (1 + 0 + 1 + 0 + 5 + 0 + 1 + 0 + 1 + 0 + 1 + 0 + 1).

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1010501010101 is a modest number, since divided by 1010101 gives 10105 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010501010161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45931864085 + ... + 45931864106.

It is an arithmetic number, because the mean of its divisors is an integer number (275591184576).

Almost surely, 21010501010101 is an apocalyptic number.

1010501010101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1010501010101 is a deficient number, since it is larger than the sum of its proper divisors (91863728203).

1010501010101 is an equidigital number, since it uses as much as digits as its factorization.

1010501010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91863728202.

The product of its (nonzero) digits is 5, while the sum is 11.

Adding to 1010501010101 its reverse (1010101050101), we get a palindrome (2020602060202).

The spelling of 1010501010101 in words is "one trillion, ten billion, five hundred one million, ten thousand, one hundred one".

Divisors: 1 11 91863728191 1010501010101