13021321123012 has 24 divisors (see below), whose sum is σ = 23272912373760. Its totient is φ = 6371926682880.

The previous prime is 13021321122937. The next prime is 13021321123033. The reversal of 13021321123012 is 21032112312031.

13021321123012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4684189 + ... + 6927067.

It is an arithmetic number, because the mean of its divisors is an integer number (969704682240).

Almost surely, 2^{13021321123012} is an apocalyptic number.

It is an amenable number.

13021321123012 is a deficient number, since it is larger than the sum of its proper divisors (10251591250748).

13021321123012 is a wasteful number, since it uses less digits than its factorization.

13021321123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273811 (or 2273809 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 13021321123012 its reverse (21032112312031), we get a palindrome (34053433435043).

The spelling of 13021321123012 in words is "thirteen trillion, twenty-one billion, three hundred twenty-one million, one hundred twenty-three thousand, twelve".