11323151131 has 4 divisors (see below), whose sum is σ = 11361796992. Its totient is φ = 11284505272.

The previous prime is 11323151129. The next prime is 11323151153. The reversal of 11323151131 is 13115132311.

11323151131 is digitally balanced in base 2, 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.

It is a cyclic number.

It is not a de Polignac number, because 11323151131 - 2¹ = 11323151129 is a prime.

It is a super-2 number, since 2×11323151131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11323151531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19322491 + ... + 19323076.

It is an arithmetic number, because the mean of its divisors is an integer number (2840449248).

Almost surely, 2^11323151131 is an apocalyptic number.

11323151131 is a deficient number, since it is larger than the sum of its proper divisors (38645861).

11323151131 is an equidigital number, since it uses as much as digits as its factorization.

11323151131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38645860.

The product of its digits is 270, while the sum is 22.

Adding to 11323151131 its reverse (13115132311), we get a palindrome (24438283442).

The spelling of 11323151131 in words is "eleven billion, three hundred twenty-three million, one hundred fifty-one thousand, one hundred thirty-one".