21033131030232 has 64 divisors (see below), whose sum is σ = 55400256288000. Its totient is φ = 6636052001664.

The previous prime is 21033131030201. The next prime is 21033131030321. The reversal of 21033131030232 is 23203013133012.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 20290188 + ... + 21301595.

It is an arithmetic number, because the mean of its divisors is an integer number (865629004500).

Almost surely, 2^{21033131030232} is an apocalyptic number.

It is an amenable number.

21033131030232 is an abundant number, since it is smaller than the sum of its proper divisors (34367125257768).

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

21033131030232 is a wasteful number, since it uses less digits than its factorization.

21033131030232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41592920 (or 41592916 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21033131030232 its reverse (23203013133012), we get a palindrome (44236144163244).

The spelling of 21033131030232 in words is "twenty-one trillion, thirty-three billion, one hundred thirty-one million, thirty thousand, two hundred thirty-two".