131122112233 has 4 divisors (see below), whose sum is σ = 149853842560. Its totient is φ = 112390381908.

The previous prime is 131122112213. The next prime is 131122112237. The reversal of 131122112233 is 332211221131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 131122112233 - 2³³ = 122532177641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131122112237) 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, 9365865153 + ... + 9365865166.

It is an arithmetic number, because the mean of its divisors is an integer number (37463460640).

Almost surely, 2^131122112233 is an apocalyptic number.

It is an amenable number.

131122112233 is a deficient number, since it is larger than the sum of its proper divisors (18731730327).

131122112233 is an equidigital number, since it uses as much as digits as its factorization.

131122112233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18731730326.

The product of its digits is 432, while the sum is 22.

Adding to 131122112233 its reverse (332211221131), we get a palindrome (463333333364).

The spelling of 131122112233 in words is "one hundred thirty-one billion, one hundred twenty-two million, one hundred twelve thousand, two hundred thirty-three".