123233123221131 has 48 divisors (see below), whose sum is σ = 206490334240512. Its totient is φ = 63991358946240.

The previous prime is 123233123221127. The next prime is 123233123221207. The reversal of 123233123221131 is 131122321332321.

It is a happy number.

It is not a de Polignac number, because 123233123221131 - 2² = 123233123221127 is a prime.

It is a super-2 number, since 2×123233123221131² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123233123221931) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3495585 + ... + 16083698.

It is an arithmetic number, because the mean of its divisors is an integer number (4301881963344).

Almost surely, 2^{123233123221131} is an apocalyptic number.

123233123221131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123233123221131 is a deficient number, since it is larger than the sum of its proper divisors (83257211019381).

123233123221131 is a wasteful number, since it uses less digits than its factorization.

123233123221131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19581792 (or 19581781 counting only the distinct ones).

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

Adding to 123233123221131 its reverse (131122321332321), we get a palindrome (254355444553452).

The spelling of 123233123221131 in words is "one hundred twenty-three trillion, two hundred thirty-three billion, one hundred twenty-three million, two hundred twenty-one thousand, one hundred thirty-one".