13531313015 has 16 divisors (see below), whose sum is σ = 17723815200. Its totient is φ = 9835345920.

The previous prime is 13531312981. The next prime is 13531313023. The reversal of 13531313015 is 51031313531.

It is not a de Polignac number, because 13531313015 - 2¹⁰ = 13531311991 is a prime.

It is a congruent 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, 28511 + ... + 166959.

It is an arithmetic number, because the mean of its divisors is an integer number (1107738450).

Almost surely, 2^13531313015 is an apocalyptic number.

13531313015 is a deficient number, since it is larger than the sum of its proper divisors (4192502185).

13531313015 is a wasteful number, since it uses less digits than its factorization.

13531313015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140242.

The product of its (nonzero) digits is 2025, while the sum is 26.

Adding to 13531313015 its reverse (51031313531), we get a palindrome (64562626546).

The spelling of 13531313015 in words is "thirteen billion, five hundred thirty-one million, three hundred thirteen thousand, fifteen".