21032101032 has 32 divisors (see below), whose sum is σ = 54276391680. Its totient is φ = 6784548480.

The previous prime is 21032101007. The next prime is 21032101037. The reversal of 21032101032 is 23010123012.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (21032101037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14133733 + ... + 14135220.

It is an arithmetic number, because the mean of its divisors is an integer number (1696137240).

Almost surely, 2^21032101032 is an apocalyptic number.

It is an amenable number.

21032101032 is an abundant number, since it is smaller than the sum of its proper divisors (33244290648).

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

21032101032 is a wasteful number, since it uses less digits than its factorization.

21032101032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28268993 (or 28268989 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21032101032 its reverse (23010123012), we get a palindrome (44042224044).

The spelling of 21032101032 in words is "twenty-one billion, thirty-two million, one hundred one thousand, thirty-two".