1312113394 has 16 divisors (see below), whose sum is σ = 2016236448. Its totient is φ = 640217952.

The previous prime is 1312113391. The next prime is 1312113493. The reversal of 1312113394 is 4933112131.

It is not an unprimeable number, because it can be changed into a prime (1312113391) 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, 31419 + ... + 60094.

It is an arithmetic number, because the mean of its divisors is an integer number (126014778).

Almost surely, 2^1312113394 is an apocalyptic number.

1312113394 is a deficient number, since it is larger than the sum of its proper divisors (704123054).

1312113394 is a wasteful number, since it uses less digits than its factorization.

1312113394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91689.

The product of its digits is 1944, while the sum is 28.

The square root of 1312113394 is about 36223.1058027884. The cubic root of 1312113394 is about 1094.7722729309.

The spelling of 1312113394 in words is "one billion, three hundred twelve million, one hundred thirteen thousand, three hundred ninety-four".