1311513104 has 40 divisors (see below), whose sum is σ = 2775358080. Its totient is φ = 595433600.

The previous prime is 1311513103. The next prime is 1311513113. The reversal of 1311513104 is 4013151131.

It is not an unprimeable number, because it can be changed into a prime (1311513101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161657 + ... + 169575.

It is an arithmetic number, because the mean of its divisors is an integer number (69383952).

Almost surely, 2^1311513104 is an apocalyptic number.

It is an amenable number.

1311513104 is an abundant number, since it is smaller than the sum of its proper divisors (1463844976).

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

1311513104 is a wasteful number, since it uses less digits than its factorization.

1311513104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8879 (or 8873 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1311513104 is about 36214.8188453290. The cubic root of 1311513104 is about 1094.6052952149.

Adding to 1311513104 its reverse (4013151131), we get a palindrome (5324664235).

It can be divided in two parts, 1311 and 513104, that added together give a palindrome (514415).

The spelling of 1311513104 in words is "one billion, three hundred eleven million, five hundred thirteen thousand, one hundred four".