13057111 has 4 divisors (see below), whose sum is σ = 13271224. Its totient is φ = 12843000.

The previous prime is 13057081. The next prime is 13057127. The reversal of 13057111 is 11175031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11175031 = 7 ⋅1596433.

It is a cyclic number.

It is not a de Polignac number, because 13057111 - 2⁹ = 13056599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13057141) 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, 106965 + ... + 107086.

It is an arithmetic number, because the mean of its divisors is an integer number (3317806).

Almost surely, 2^13057111 is an apocalyptic number.

13057111 is a deficient number, since it is larger than the sum of its proper divisors (214113).

13057111 is an equidigital number, since it uses as much as digits as its factorization.

13057111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214112.

The product of its (nonzero) digits is 105, while the sum is 19.

The square root of 13057111 is about 3613.4624669422. The cubic root of 13057111 is about 235.4772916079.

The spelling of 13057111 in words is "thirteen million, fifty-seven thousand, one hundred eleven".