100561042135 has 32 divisors (see below), whose sum is σ = 125430497280. Its totient is φ = 77315212800.

The previous prime is 100561042121. The next prime is 100561042139. The reversal of 100561042135 is 531240165001.

It is a de Polignac number, because none of the positive numbers 2^k-100561042135 is a prime.

It is a super-2 number, since 2×100561042135² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100561042139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14153994 + ... + 14161096.

It is an arithmetic number, because the mean of its divisors is an integer number (3919703040).

Almost surely, 2^100561042135 is an apocalyptic number.

100561042135 is a deficient number, since it is larger than the sum of its proper divisors (24869455145).

100561042135 is a wasteful number, since it uses less digits than its factorization.

100561042135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7759.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 100561042135 in words is "one hundred billion, five hundred sixty-one million, forty-two thousand, one hundred thirty-five".