1312013346 has 48 divisors (see below), whose sum is σ = 3165067584. Its totient is φ = 355127328.

The previous prime is 1312013321. The next prime is 1312013371. The reversal of 1312013346 is 6433102131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1312013321) and next prime (1312013371).

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, 28105 + ... + 58428.

It is an arithmetic number, because the mean of its divisors is an integer number (65938908).

Almost surely, 2^1312013346 is an apocalyptic number.

1312013346 is an abundant number, since it is smaller than the sum of its proper divisors (1853054238).

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

1312013346 is a wasteful number, since it uses less digits than its factorization.

1312013346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86583 (or 86564 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 1312013346 is about 36221.7247794745. The cubic root of 1312013346 is about 1094.7444469415.

Adding to 1312013346 its reverse (6433102131), we get a palindrome (7745115477).

The spelling of 1312013346 in words is "one billion, three hundred twelve million, thirteen thousand, three hundred forty-six".