123131212233 has 8 divisors (see below), whose sum is σ = 164261047968. Its totient is φ = 82044425664.

The previous prime is 123131212231. The next prime is 123131212247. The reversal of 123131212233 is 332212131321.

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

It is not a de Polignac number, because 123131212233 - 2¹ = 123131212231 is a prime.

It is a super-2 number, since 2×123131212233² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123131212231) 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, 10755616 + ... + 10767057.

It is an arithmetic number, because the mean of its divisors is an integer number (20532630996).

Almost surely, 2^123131212233 is an apocalyptic number.

It is an amenable number.

123131212233 is a deficient number, since it is larger than the sum of its proper divisors (41129835735).

123131212233 is a wasteful number, since it uses less digits than its factorization.

123131212233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21524583.

The product of its digits is 1296, while the sum is 24.

Adding to 123131212233 its reverse (332212131321), we get a palindrome (455343343554).

The spelling of 123131212233 in words is "one hundred twenty-three billion, one hundred thirty-one million, two hundred twelve thousand, two hundred thirty-three".