13131525122232 has 128 divisors (see below), whose sum is σ = 36319963680000. Its totient is φ = 3922996976640.

The previous prime is 13131525122207. The next prime is 13131525122251. The reversal of 13131525122232 is 23222152513131.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 13131525122193 and 13131525122202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43578019 + ... + 43878317.

It is an arithmetic number, because the mean of its divisors is an integer number (283749716250).

Almost surely, 2^{13131525122232} is an apocalyptic number.

13131525122232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13131525122232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18159981840000).

13131525122232 is an abundant number, since it is smaller than the sum of its proper divisors (23188438557768).

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

13131525122232 is a wasteful number, since it uses less digits than its factorization.

13131525122232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302661 (or 302657 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

Adding to 13131525122232 its reverse (23222152513131), we get a palindrome (36353677635363).

The spelling of 13131525122232 in words is "thirteen trillion, one hundred thirty-one billion, five hundred twenty-five million, one hundred twenty-two thousand, two hundred thirty-two".