21031123033332 has 48 divisors (see below), whose sum is σ = 54532037044800. Its totient is φ = 7009486783200.

The previous prime is 21031123033313. The next prime is 21031123033337. The reversal of 21031123033332 is 23333032113012.

21031123033332 is a `hidden beast` number, since 2 + 10 + 3 + 1 + 12 + 303 + 3 + 332 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 21031123033296 and 21031123033305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21031123033337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11469982 + ... + 13176597.

It is an arithmetic number, because the mean of its divisors is an integer number (1136084105100).

Almost surely, 2^{21031123033332} is an apocalyptic number.

It is an amenable number.

21031123033332 is an abundant number, since it is smaller than the sum of its proper divisors (33500914011468).

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

21031123033332 is a wasteful number, since it uses less digits than its factorization.

21031123033332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24654493 (or 24654485 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 21031123033332 its reverse (23333032113012), we get a palindrome (44364155146344).

The spelling of 21031123033332 in words is "twenty-one trillion, thirty-one billion, one hundred twenty-three million, thirty-three thousand, three hundred thirty-two".