1312321170160 has 160 divisors (see below), whose sum is σ = 4096644797952. Its totient is φ = 377570903040.

The previous prime is 1312321170157. The next prime is 1312321170161. The reversal of 1312321170160 is 610711232131.

It is a super-2 number, since 2×1312321170160² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312321170161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8113734 + ... + 8273893.

Almost surely, 2^{1312321170160} is an apocalyptic number.

1312321170160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312321170160 is an abundant number, since it is smaller than the sum of its proper divisors (2784323627792).

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

1312321170160 is a wasteful number, since it uses less digits than its factorization.

1312321170160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16387671 (or 16387665 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 1312321170160 in words is "one trillion, three hundred twelve billion, three hundred twenty-one million, one hundred seventy thousand, one hundred sixty".