11383131 has 4 divisors (see below), whose sum is σ = 15177512. Its totient is φ = 7588752.

The previous prime is 11383123. The next prime is 11383133. The reversal of 11383131 is 13138311.

11383131 is digitally balanced in base 3, because in such base 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: 13138311 = 3 ⋅4379437.

It is not a de Polignac number, because 11383131 - 2³ = 11383123 is a prime.

It is a super-2 number, since 2×11383131² = 259151342726322, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11383098 and 11383107.

It is not an unprimeable number, because it can be changed into a prime (11383133) 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, 1897186 + ... + 1897191.

It is an arithmetic number, because the mean of its divisors is an integer number (3794378).

Almost surely, 2^11383131 is an apocalyptic number.

11383131 is a deficient number, since it is larger than the sum of its proper divisors (3794381).

11383131 is an equidigital number, since it uses as much as digits as its factorization.

11383131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3794380.

The product of its digits is 216, while the sum is 21.

The square root of 11383131 is about 3373.8895951113. The cubic root of 11383131 is about 224.9506459650.

The spelling of 11383131 in words is "eleven million, three hundred eighty-three thousand, one hundred thirty-one".