1312305236460 has 72 divisors (see below), whose sum is σ = 3986869644576. Its totient is φ = 349402091520.

The previous prime is 1312305236413. The next prime is 1312305236461. The reversal of 1312305236460 is 646325032131.

1312305236460 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 3 + 0 + 5 + 2 + 3 + 646 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1312305236461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5571504 + ... + 5802263.

It is an arithmetic number, because the mean of its divisors is an integer number (55373189508).

Almost surely, 2^{1312305236460} is an apocalyptic number.

1312305236460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312305236460 is an abundant number, since it is smaller than the sum of its proper divisors (2674564408116).

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

1312305236460 is a wasteful number, since it uses less digits than its factorization.

1312305236460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11374423 (or 11374418 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 1312305236460 in words is "one trillion, three hundred twelve billion, three hundred five million, two hundred thirty-six thousand, four hundred sixty".