123212033131231 has 16 divisors (see below), whose sum is σ = 134505935809056. Its totient is φ = 111933617040000.

The previous prime is 123212033131207. The next prime is 123212033131249. The reversal of 123212033131231 is 132131330212321.

It is a cyclic number.

It is not a de Polignac number, because 123212033131231 - 2²³ = 123212024742623 is a prime.

It is a super-2 number, since 2×123212033131231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123212033131231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123212033132231) 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, 134262361 + ... + 135176941.

It is an arithmetic number, because the mean of its divisors is an integer number (8406620988066).

Almost surely, 2^{123212033131231} is an apocalyptic number.

123212033131231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123212033131231 is a deficient number, since it is larger than the sum of its proper divisors (11293902677825).

123212033131231 is a wasteful number, since it uses less digits than its factorization.

123212033131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923034.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 123212033131231 its reverse (132131330212321), we get a palindrome (255343363343552).

The spelling of 123212033131231 in words is "one hundred twenty-three trillion, two hundred twelve billion, thirty-three million, one hundred thirty-one thousand, two hundred thirty-one".