11345131 has 4 divisors (see below), whose sum is σ = 12965872. Its totient is φ = 9724392.

The previous prime is 11345093. The next prime is 11345143. The reversal of 11345131 is 13154311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11345131 - 2²³ = 2956523 is a prime.

It is a super-2 number, since 2×11345131² = 257423994814322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11345099 and 11345108.

It is not an unprimeable number, because it can be changed into a prime (11345231) 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, 810360 + ... + 810373.

It is an arithmetic number, because the mean of its divisors is an integer number (3241468).

Almost surely, 2^11345131 is an apocalyptic number.

11345131 is a deficient number, since it is larger than the sum of its proper divisors (1620741).

11345131 is an equidigital number, since it uses as much as digits as its factorization.

11345131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620740.

The product of its digits is 180, while the sum is 19.

The square root of 11345131 is about 3368.2534049563. The cubic root of 11345131 is about 224.7000513434.

Adding to 11345131 its reverse (13154311), we get a palindrome (24499442).

It can be divided in two parts, 11345 and 131, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 11345131 in words is "eleven million, three hundred forty-five thousand, one hundred thirty-one".