13013111 has 4 divisors (see below), whose sum is σ = 13033872. Its totient is φ = 12992352.

The previous prime is 13013071. The next prime is 13013129. The reversal of 13013111 is 11131031.

It is a happy number.

13013111 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11131031 = 809 ⋅13759.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13013111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13013092 and 13013101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013131) 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, 9410 + ... + 10703.

It is an arithmetic number, because the mean of its divisors is an integer number (3258468).

Almost surely, 2^13013111 is an apocalyptic number.

13013111 is a deficient number, since it is larger than the sum of its proper divisors (20761).

13013111 is an equidigital number, since it uses as much as digits as its factorization.

13013111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20760.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 13013111 is about 3607.3689858400. The cubic root of 13013111 is about 235.2124892619.

Adding to 13013111 its reverse (11131031), we get a palindrome (24144142).

The spelling of 13013111 in words is "thirteen million, thirteen thousand, one hundred eleven".