233132111131 has 4 divisors (see below), whose sum is σ = 236415662064. Its totient is φ = 229848560200.

The previous prime is 233132111123. The next prime is 233132111159. The reversal of 233132111131 is 131111231332.

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 233132111131 - 2³ = 233132111123 is a prime.

It is a super-2 number, since 2×233132111131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233132111431) 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, 1641775360 + ... + 1641775501.

It is an arithmetic number, because the mean of its divisors is an integer number (59103915516).

Almost surely, 2^233132111131 is an apocalyptic number.

233132111131 is a deficient number, since it is larger than the sum of its proper divisors (3283550933).

233132111131 is an equidigital number, since it uses as much as digits as its factorization.

233132111131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283550932.

The product of its digits is 324, while the sum is 22.

Adding to 233132111131 its reverse (131111231332), we get a palindrome (364243342463).

The spelling of 233132111131 in words is "two hundred thirty-three billion, one hundred thirty-two million, one hundred eleven thousand, one hundred thirty-one".