15115314313 has 12 divisors (see below), whose sum is σ = 16619210244. Its totient is φ = 13737178400.

The previous prime is 15115314311. The next prime is 15115314337. The reversal of 15115314313 is 31341351151.

It can be written as a sum of positive squares in 2 ways, for example, as 6232628809 + 8882685504 = 78947^2 + 94248^2 .

It is not a de Polignac number, because 15115314313 - 2¹ = 15115314311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15115314311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 445995 + ... + 478687.

It is an arithmetic number, because the mean of its divisors is an integer number (1384934187).

Almost surely, 2^15115314313 is an apocalyptic number.

It is an amenable number.

15115314313 is a deficient number, since it is larger than the sum of its proper divisors (1503895931).

15115314313 is a wasteful number, since it uses less digits than its factorization.

15115314313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36536 (or 36525 counting only the distinct ones).

The product of its digits is 2700, while the sum is 28.

Adding to 15115314313 its reverse (31341351151), we get a palindrome (46456665464).

The spelling of 15115314313 in words is "fifteen billion, one hundred fifteen million, three hundred fourteen thousand, three hundred thirteen".