1312307052 has 24 divisors (see below), whose sum is σ = 3499485696. Its totient is φ = 374944848.

The previous prime is 1312307011. The next prime is 1312307053. The reversal of 1312307052 is 2507032131.

It is not an unprimeable number, because it can be changed into a prime (1312307053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7811268 + ... + 7811435.

It is an arithmetic number, because the mean of its divisors is an integer number (145811904).

Almost surely, 2^1312307052 is an apocalyptic number.

1312307052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312307052 is an abundant number, since it is smaller than the sum of its proper divisors (2187178644).

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

1312307052 is a wasteful number, since it uses less digits than its factorization.

1312307052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15622717 (or 15622715 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 1312307052 is about 36225.7788322073. The cubic root of 1312307052 is about 1094.8261303135.

Adding to 1312307052 its reverse (2507032131), we get a palindrome (3819339183).

The spelling of 1312307052 in words is "one billion, three hundred twelve million, three hundred seven thousand, fifty-two".