1312044523320 has 64 divisors (see below), whose sum is σ = 3936803173920. Its totient is φ = 349819019264.

The previous prime is 1312044523291. The next prime is 1312044523331. The reversal of 1312044523320 is 233254402131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219417 + ... + 1634696.

Almost surely, 2^{1312044523320} is an apocalyptic number.

1312044523320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312044523320 is an abundant number, since it is smaller than the sum of its proper divisors (2624758650600).

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

1312044523320 is a wasteful number, since it uses less digits than its factorization.

1312044523320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860024 (or 1860020 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 1312044523320 its reverse (233254402131), we get a palindrome (1545298925451).

The spelling of 1312044523320 in words is "one trillion, three hundred twelve billion, forty-four million, five hundred twenty-three thousand, three hundred twenty".