1312144402 has 32 divisors (see below), whose sum is σ = 2067690240. Its totient is φ = 623848320.

The previous prime is 1312144399. The next prime is 1312144423. The reversal of 1312144402 is 2044412131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1182624 + ... + 1183732.

It is an arithmetic number, because the mean of its divisors is an integer number (64615320).

Almost surely, 2^1312144402 is an apocalyptic number.

1312144402 is a deficient number, since it is larger than the sum of its proper divisors (755545838).

1312144402 is a wasteful number, since it uses less digits than its factorization.

1312144402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1312144402 is about 36223.5338143589. The cubic root of 1312144402 is about 1094.7808967870.

Adding to 1312144402 its reverse (2044412131), we get a palindrome (3356556533).

The spelling of 1312144402 in words is "one billion, three hundred twelve million, one hundred forty-four thousand, four hundred two".