13213100121232 has 40 divisors (see below), whose sum is σ = 27927902714112. Its totient is φ = 6005908617600.

The previous prime is 13213100121229. The next prime is 13213100121233. The reversal of 13213100121232 is 23212100131231.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (13213100121233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35131038 + ... + 35505154.

Almost surely, 2^{13213100121232} is an apocalyptic number.

It is an amenable number.

13213100121232 is an abundant number, since it is smaller than the sum of its proper divisors (14714802592880).

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

13213100121232 is a wasteful number, since it uses less digits than its factorization.

13213100121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574807 (or 574801 counting only the distinct ones).

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

Adding to 13213100121232 its reverse (23212100131231), we get a palindrome (36425200252463).

Subtracting 13213100121232 from its reverse (23212100131231), we obtain a palindrome (9999000009999).

The spelling of 13213100121232 in words is "thirteen trillion, two hundred thirteen billion, one hundred million, one hundred twenty-one thousand, two hundred thirty-two".