21031202233232 has 20 divisors (see below), whose sum is σ = 40769709833100. Its totient is φ = 10509986792448.

The previous prime is 21031202233201. The next prime is 21031202233241. The reversal of 21031202233232 is 23233220213012.

It can be written as a sum of positive squares in 2 ways, for example, as 9456264610816 + 11574937622416 = 3075104^2 + 3402196^2 .

It is a super-2 number, since 2×21031202233232² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350864357 + ... + 350924292.

It is an arithmetic number, because the mean of its divisors is an integer number (2038485491655).

Almost surely, 2^{21031202233232} is an apocalyptic number.

It is an amenable number.

21031202233232 is a deficient number, since it is larger than the sum of its proper divisors (19738507599868).

21031202233232 is a wasteful number, since it uses less digits than its factorization.

21031202233232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701790530 (or 701790524 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 21031202233232 its reverse (23233220213012), we get a palindrome (44264422446244).

The spelling of 21031202233232 in words is "twenty-one trillion, thirty-one billion, two hundred two million, two hundred thirty-three thousand, two hundred thirty-two".