1312111522160 has 20 divisors (see below), whose sum is σ = 3050659289208. Its totient is φ = 524844608832.

The previous prime is 1312111522157. The next prime is 1312111522181. The reversal of 1312111522160 is 612251112131.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8200696934 + ... + 8200697093.

Almost surely, 2^{1312111522160} is an apocalyptic number.

1312111522160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312111522160 is an abundant number, since it is smaller than the sum of its proper divisors (1738547767048).

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

1312111522160 is a wasteful number, since it uses less digits than its factorization.

1312111522160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16401394040 (or 16401394034 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

Adding to 1312111522160 its reverse (612251112131), we get a palindrome (1924362634291).

The spelling of 1312111522160 in words is "one trillion, three hundred twelve billion, one hundred eleven million, five hundred twenty-two thousand, one hundred sixty".