1312053563412 has 72 divisors (see below), whose sum is σ = 3370141558056. Its totient is φ = 430340235264.

The previous prime is 1312053563393. The next prime is 1312053563423. The reversal of 1312053563412 is 2143653502131.

1312053563412 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 0 + 5 + 3 + 5 + 634 + 12 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 785839698576 + 526213864836 = 886476^2 + 725406^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 481813 + ... + 1690044.

Almost surely, 2^{1312053563412} is an apocalyptic number.

1312053563412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312053563412 is an abundant number, since it is smaller than the sum of its proper divisors (2058087994644).

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

1312053563412 is a wasteful number, since it uses less digits than its factorization.

1312053563412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172137 (or 2172132 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 1312053563412 in words is "one trillion, three hundred twelve billion, fifty-three million, five hundred sixty-three thousand, four hundred twelve".