233113131312 has 80 divisors (see below), whose sum is σ = 642500698752. Its totient is φ = 72575226880.

The previous prime is 233113131283. The next prime is 233113131319. The reversal of 233113131312 is 213131311332.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (233113131319) 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, 983478 + ... + 1197269.

Almost surely, 2^233113131312 is an apocalyptic number.

It is an amenable number.

233113131312 is an abundant number, since it is smaller than the sum of its proper divisors (409387567440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

233113131312 is a wasteful number, since it uses less digits than its factorization.

233113131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180906 (or 2180900 counting only the distinct ones).

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

Adding to 233113131312 its reverse (213131311332), we get a palindrome (446244442644).

The spelling of 233113131312 in words is "two hundred thirty-three billion, one hundred thirteen million, one hundred thirty-one thousand, three hundred twelve".