1311413402 has 32 divisors (see below), whose sum is σ = 2326907520. Its totient is φ = 548475840.

The previous prime is 1311413399. The next prime is 1311413423. The reversal of 1311413402 is 2043141131.

It is a super-2 number, since 2×1311413402² = 3439610221890427208, which contains 22 as substring.

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, 46349 + ... + 69072.

It is an arithmetic number, because the mean of its divisors is an integer number (72715860).

Almost surely, 2^1311413402 is an apocalyptic number.

1311413402 is a deficient number, since it is larger than the sum of its proper divisors (1015494118).

1311413402 is a wasteful number, since it uses less digits than its factorization.

1311413402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115478.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1311413402 is about 36213.4422832185. The cubic root of 1311413402 is about 1094.5775569986.

Adding to 1311413402 its reverse (2043141131), we get a palindrome (3354554533).

The spelling of 1311413402 in words is "one billion, three hundred eleven million, four hundred thirteen thousand, four hundred two".