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10031030101 = 12238201987
BaseRepresentation
bin10010101011110010…
…10101111101010101
3221220002011010102101
421111321111331111
5131020420430401
64335211442101
7503402230501
oct112571257525
927802133371
1010031030101
114288289424
121b3b456331
13c3b263291
146b231d301
153da98c101
hex255e55f55

10031030101 has 4 divisors (see below), whose sum is σ = 10039233312. Its totient is φ = 10022826892.

The previous prime is 10031030063. The next prime is 10031030117. The reversal of 10031030101 is 10103013001.

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 10031030101 - 27 = 10031029973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031030161) 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, 4099771 + ... + 4102216.

It is an arithmetic number, because the mean of its divisors is an integer number (2509808328).

Almost surely, 210031030101 is an apocalyptic number.

It is an amenable number.

10031030101 is a deficient number, since it is larger than the sum of its proper divisors (8203211).

10031030101 is an equidigital number, since it uses as much as digits as its factorization.

10031030101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8203210.

The product of its (nonzero) digits is 9, while the sum is 10.

Adding to 10031030101 its reverse (10103013001), we get a palindrome (20134043102).

The spelling of 10031030101 in words is "ten billion, thirty-one million, thirty thousand, one hundred one".

Divisors: 1 1223 8201987 10031030101