13113631 has 8 divisors (see below), whose sum is σ = 13444704. Its totient is φ = 12785760.

The previous prime is 13113619. The next prime is 13113637. The reversal of 13113631 is 13631131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13113631 - 2⁹ = 13113119 is a prime.

It is a super-2 number, since 2×13113631² = 343934636008322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13113599 and 13113608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113637) 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, 8910 + ... + 10276.

It is an arithmetic number, because the mean of its divisors is an integer number (1680588).

Almost surely, 2^13113631 is an apocalyptic number.

13113631 is a deficient number, since it is larger than the sum of its proper divisors (331073).

13113631 is a wasteful number, since it uses less digits than its factorization.

13113631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601.

The product of its digits is 162, while the sum is 19.

The square root of 13113631 is about 3621.2747755452. The cubic root of 13113631 is about 235.8165708167.

Adding to 13113631 its reverse (13631131), we get a palindrome (26744762).

The spelling of 13113631 in words is "thirteen million, one hundred thirteen thousand, six hundred thirty-one".