21130333032 has 32 divisors (see below), whose sum is σ = 52848254880. Its totient is φ = 7040454720.

The previous prime is 21130333031. The next prime is 21130333033. The reversal of 21130333032 is 23033303112.

It is an interprime number because it is at equal distance from previous prime (21130333031) and next prime (21130333033).

It is not an unprimeable number, because it can be changed into a prime (21130333031) 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, 128763 + ... + 242570.

It is an arithmetic number, because the mean of its divisors is an integer number (1651507965).

Almost surely, 2^21130333032 is an apocalyptic number.

It is an amenable number.

21130333032 is an abundant number, since it is smaller than the sum of its proper divisors (31717921848).

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

21130333032 is a wasteful number, since it uses less digits than its factorization.

21130333032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373713 (or 373709 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 21130333032 its reverse (23033303112), we get a palindrome (44163636144).

The spelling of 21130333032 in words is "twenty-one billion, one hundred thirty million, three hundred thirty-three thousand, thirty-two".