13122131232 has 48 divisors (see below), whose sum is σ = 39366395712. Its totient is φ = 3749180160.

The previous prime is 13122131213. The next prime is 13122131251. The reversal of 13122131232 is 23213122131.

It is an interprime number because it is at equal distance from previous prime (13122131213) and next prime (13122131251).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 13122131199 and 13122131208.

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, 9762819 + ... + 9764162.

It is an arithmetic number, because the mean of its divisors is an integer number (820133244).

Almost surely, 2^13122131232 is an apocalyptic number.

13122131232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13122131232 is an abundant number, since it is smaller than the sum of its proper divisors (26244264480).

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

13122131232 is a wasteful number, since it uses less digits than its factorization.

13122131232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19527001 (or 19526993 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 13122131232 its reverse (23213122131), we get a palindrome (36335253363).

The spelling of 13122131232 in words is "thirteen billion, one hundred twenty-two million, one hundred thirty-one thousand, two hundred thirty-two".