1312122130000 has 100 divisors (see below), whose sum is σ = 3465577260288. Its totient is φ = 477135280000.

The previous prime is 1312122129973. The next prime is 1312122130079. The reversal of 1312122130000 is 312212131.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5854192 + ... + 6074191.

Almost surely, 2^{1312122130000} is an apocalyptic number.

1312122130000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312122130000 is an abundant number, since it is smaller than the sum of its proper divisors (2153455130288).

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

1312122130000 is a wasteful number, since it uses less digits than its factorization.

1312122130000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11928422 (or 11928401 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1312122130000 its reverse (312212131), we get a palindrome (1312434342131).

The spelling of 1312122130000 in words is "one trillion, three hundred twelve billion, one hundred twenty-two million, one hundred thirty thousand".