100021012432 has 40 divisors (see below), whose sum is σ = 218227675392. Its totient is φ = 43997510400.

The previous prime is 100021012381. The next prime is 100021012457. The reversal of 100021012432 is 234210120001.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9160693 + ... + 9171604.

Almost surely, 2^100021012432 is an apocalyptic number.

It is an amenable number.

100021012432 is an abundant number, since it is smaller than the sum of its proper divisors (118206662960).

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

100021012432 is a wasteful number, since it uses less digits than its factorization.

100021012432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18332347 (or 18332341 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 100021012432 its reverse (234210120001), we get a palindrome (334231132433).

The spelling of 100021012432 in words is "one hundred billion, twenty-one million, twelve thousand, four hundred thirty-two".