231312223111233 has 16 divisors (see below), whose sum is σ = 345547497917376. Its totient is φ = 136400328123840.

The previous prime is 231312223111187. The next prime is 231312223111243. The reversal of 231312223111233 is 332111322213132.

It is a happy number.

It is not a de Polignac number, because 231312223111233 - 2²⁸ = 231311954675777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231312223111233.

It is not an unprimeable number, because it can be changed into a prime (231312223111243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94722448866 + ... + 94722451307.

It is an arithmetic number, because the mean of its divisors is an integer number (21596718619836).

Almost surely, 2^{231312223111233} is an apocalyptic number.

It is an amenable number.

231312223111233 is a deficient number, since it is larger than the sum of its proper divisors (114235274806143).

231312223111233 is a wasteful number, since it uses less digits than its factorization.

231312223111233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189444900224.

The product of its digits is 7776, while the sum is 30.

Adding to 231312223111233 its reverse (332111322213132), we get a palindrome (563423545324365).

The spelling of 231312223111233 in words is "two hundred thirty-one trillion, three hundred twelve billion, two hundred twenty-three million, one hundred eleven thousand, two hundred thirty-three".