20100102112044 has 48 divisors (see below), whose sum is σ = 52140151271040. Its totient is φ = 6696334339920.

The previous prime is 20100102112031. The next prime is 20100102112093. The reversal of 20100102112044 is 44021120100102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51188194 + ... + 51579369.

It is an arithmetic number, because the mean of its divisors is an integer number (1086253151480).

Almost surely, 2^{20100102112044} is an apocalyptic number.

It is an amenable number.

20100102112044 is an abundant number, since it is smaller than the sum of its proper divisors (32040049158996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20100102112044 is a wasteful number, since it uses less digits than its factorization.

20100102112044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102769387 (or 102769379 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20100102112044 its reverse (44021120100102), we get a palindrome (64121222212146).

The spelling of 20100102112044 in words is "twenty trillion, one hundred billion, one hundred two million, one hundred twelve thousand, forty-four".