131311312233 has 8 divisors (see below), whose sum is σ = 175084467168. Its totient is φ = 87539516064.

The previous prime is 131311312217. The next prime is 131311312271. The reversal of 131311312233 is 332213113131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131311312233 - 2⁴ = 131311312217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131311312633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87435 + ... + 519872.

It is an arithmetic number, because the mean of its divisors is an integer number (21885558396).

Almost surely, 2^131311312233 is an apocalyptic number.

It is an amenable number.

131311312233 is a deficient number, since it is larger than the sum of its proper divisors (43773154935).

131311312233 is an equidigital number, since it uses as much as digits as its factorization.

131311312233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679383.

The product of its digits is 972, while the sum is 24.

Adding to 131311312233 its reverse (332213113131), we get a palindrome (463524425364).

The spelling of 131311312233 in words is "one hundred thirty-one billion, three hundred eleven million, three hundred twelve thousand, two hundred thirty-three".