1331250013752 has 64 divisors (see below), whose sum is σ = 3450731328000. Its totient is φ = 427472217984.

The previous prime is 1331250013721. The next prime is 1331250013759. The reversal of 1331250013752 is 2573100521331.

It is a super-2 number, since 2×1331250013752² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331250013759) 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, 1872948 + ... + 2484035.

It is an arithmetic number, because the mean of its divisors is an integer number (53917677000).

Almost surely, 2^{1331250013752} is an apocalyptic number.

1331250013752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331250013752 is an abundant number, since it is smaller than the sum of its proper divisors (2119481314248).

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

1331250013752 is a wasteful number, since it uses less digits than its factorization.

1331250013752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357460 (or 4357456 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 33.

The spelling of 1331250013752 in words is "one trillion, three hundred thirty-one billion, two hundred fifty million, thirteen thousand, seven hundred fifty-two".