11393131 has 2 divisors, whose sum is σ = 11393132. Its totient is φ = 11393130.

The previous prime is 11393117. The next prime is 11393159. The reversal of 11393131 is 13139311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11393131 - 2⁵ = 11393099 is a prime.

It is a super-2 number, since 2×11393131² = 259606867966322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11393191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5696565 + 5696566.

It is an arithmetic number, because the mean of its divisors is an integer number (5696566).

Almost surely, 2^11393131 is an apocalyptic number.

11393131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11393131 is an equidigital number, since it uses as much as digits as its factorization.

11393131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 243, while the sum is 22.

The square root of 11393131 is about 3375.3712388417. The cubic root of 11393131 is about 225.0164992016.

The spelling of 11393131 in words is "eleven million, three hundred ninety-three thousand, one hundred thirty-one".