13012232120321 has 16 divisors (see below), whose sum is σ = 15129293294208. Its totient is φ = 10960061616000.

The previous prime is 13012232120269. The next prime is 13012232120339. The reversal of 13012232120321 is 12302123221031.

It is not a de Polignac number, because 13012232120321 - 2²² = 13012227926017 is a prime.

It is a super-2 number, since 2×13012232120321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13012232120351) 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, 14048660 + ... + 14946213.

It is an arithmetic number, because the mean of its divisors is an integer number (945580830888).

Almost surely, 2^{13012232120321} is an apocalyptic number.

It is an amenable number.

13012232120321 is a deficient number, since it is larger than the sum of its proper divisors (2117061173887).

13012232120321 is a wasteful number, since it uses less digits than its factorization.

13012232120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28995992.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 13012232120321 its reverse (12302123221031), we get a palindrome (25314355341352).

The spelling of 13012232120321 in words is "thirteen trillion, twelve billion, two hundred thirty-two million, one hundred twenty thousand, three hundred twenty-one".