21031330113132 has 96 divisors (see below), whose sum is σ = 50710512195840. Its totient is φ = 6779677777920.

The previous prime is 21031330113113. The next prime is 21031330113133. The reversal of 21031330113132 is 23131103313012.

It is not an unprimeable number, because it can be changed into a prime (21031330113133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43734348 + ... + 44212620.

It is an arithmetic number, because the mean of its divisors is an integer number (528234502040).

Almost surely, 2^{21031330113132} is an apocalyptic number.

It is an amenable number.

21031330113132 is an abundant number, since it is smaller than the sum of its proper divisors (29679182082708).

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

21031330113132 is a wasteful number, since it uses less digits than its factorization.

21031330113132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479103 (or 479101 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 21031330113132 its reverse (23131103313012), we get a palindrome (44162433426144).

The spelling of 21031330113132 in words is "twenty-one trillion, thirty-one billion, three hundred thirty million, one hundred thirteen thousand, one hundred thirty-two".