123013240252331 has 16 divisors (see below), whose sum is σ = 144555281549280. Its totient is φ = 103202015301120.

The previous prime is 123013240252327. The next prime is 123013240252351. The reversal of 123013240252331 is 133252042310321.

It is a cyclic number.

It is not a de Polignac number, because 123013240252331 - 2² = 123013240252327 is a prime.

It is a super-2 number, since 2×123013240252331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123013240252351) 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, 107255150 + ... + 108396003.

It is an arithmetic number, because the mean of its divisors is an integer number (9034705096830).

Almost surely, 2^{123013240252331} is an apocalyptic number.

123013240252331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123013240252331 is a deficient number, since it is larger than the sum of its proper divisors (21542041296949).

123013240252331 is a wasteful number, since it uses less digits than its factorization.

123013240252331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215655166.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 123013240252331 its reverse (133252042310321), we get a palindrome (256265282562652).

The spelling of 123013240252331 in words is "one hundred twenty-three trillion, thirteen billion, two hundred forty million, two hundred fifty-two thousand, three hundred thirty-one".