13113113 has 4 divisors (see below), whose sum is σ = 14121828. Its totient is φ = 12104400.

The previous prime is 13113091. The next prime is 13113119. The reversal of 13113113 is 31131131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31131131 = 17 ⋅1831243.

It can be written as a sum of positive squares in 2 ways, for example, as 5914624 + 7198489 = 2432^2 + 2683^2 .

It is a cyclic number.

It is not a de Polignac number, because 13113113 - 2⁸ = 13112857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13113119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504338 + ... + 504363.

It is an arithmetic number, because the mean of its divisors is an integer number (3530457).

Almost surely, 2^13113113 is an apocalyptic number.

13113113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13113113 is a deficient number, since it is larger than the sum of its proper divisors (1008715).

13113113 is a wasteful number, since it uses less digits than its factorization.

13113113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008714.

The product of its digits is 27, while the sum is 14.

The square root of 13113113 is about 3621.2032530638. The cubic root of 13113113 is about 235.8134657882.

Adding to 13113113 its reverse (31131131), we get a palindrome (44244244).

The spelling of 13113113 in words is "thirteen million, one hundred thirteen thousand, one hundred thirteen".