13113261 has 12 divisors (see below), whose sum is σ = 21647392. Its totient is φ = 7493256.

The previous prime is 13113257. The next prime is 13113263. The reversal of 13113261 is 16231131.

13113261 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13113261 - 2² = 13113257 is a prime.

It is a super-2 number, since 2×13113261² = 343915228108242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113263) 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, 104011 + ... + 104136.

Almost surely, 2^13113261 is an apocalyptic number.

It is an amenable number.

13113261 is a deficient number, since it is larger than the sum of its proper divisors (8534131).

13113261 is a wasteful number, since it uses less digits than its factorization.

13113261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208160 (or 208157 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 13113261 is about 3621.2236882026. The cubic root of 13113261 is about 235.8143529475.

Adding to 13113261 its reverse (16231131), we get a palindrome (29344392).

The spelling of 13113261 in words is "thirteen million, one hundred thirteen thousand, two hundred sixty-one".