13121121312232 has 64 divisors (see below), whose sum is σ = 25181685648000. Its totient is φ = 6407489765376.

The previous prime is 13121121312193. The next prime is 13121121312253. The reversal of 13121121312232 is 23221312112131.

It is a junction number, because it is equal to n+sod(n) for n = 13121121312197 and 13121121312206.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158946744 + ... + 159029272.

It is an arithmetic number, because the mean of its divisors is an integer number (393463838250).

Almost surely, 2^{13121121312232} is an apocalyptic number.

It is an amenable number.

13121121312232 is a deficient number, since it is larger than the sum of its proper divisors (12060564335768).

13121121312232 is a wasteful number, since it uses less digits than its factorization.

13121121312232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84778 (or 84774 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

Adding to 13121121312232 its reverse (23221312112131), we get a palindrome (36342433424363).

The spelling of 13121121312232 in words is "thirteen trillion, one hundred twenty-one billion, one hundred twenty-one million, three hundred twelve thousand, two hundred thirty-two".