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1100102101 = 7157157443
BaseRepresentation
bin100000110010010…
…0011100111010101
32211200000222101021
41001210203213111
54223111231401
6301055001141
736155466520
oct10144434725
92750028337
101100102101
11514a84a9a
122685091b1
13146bb82b7
14a6167bb7
15668a62a1
hex419239d5

1100102101 has 4 divisors (see below), whose sum is σ = 1257259552. Its totient is φ = 942944652.

The previous prime is 1100102083. The next prime is 1100102117. The reversal of 1100102101 is 1012010011.

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 1100102101 - 29 = 1100101589 is a prime.

It is a super-2 number, since 2×11001021012 = 2420449265249228402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (7), and also a Moran number because the ratio is a prime number: 157157443 = 1100102101 / (1 + 1 + 0 + 0 + 1 + 0 + 2 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100102161) 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, 78578715 + ... + 78578728.

It is an arithmetic number, because the mean of its divisors is an integer number (314314888).

Almost surely, 21100102101 is an apocalyptic number.

It is an amenable number.

1100102101 is a deficient number, since it is larger than the sum of its proper divisors (157157451).

1100102101 is an equidigital number, since it uses as much as digits as its factorization.

1100102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157157450.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 1100102101 is about 33167.7870983278. The cubic root of 1100102101 is about 1032.3120529022.

Adding to 1100102101 its reverse (1012010011), we get a palindrome (2112112112).

The spelling of 1100102101 in words is "one billion, one hundred million, one hundred two thousand, one hundred one".

Divisors: 1 7 157157443 1100102101