123033323231 has 16 divisors (see below), whose sum is σ = 151630617600. Its totient is φ = 97213268448.

The previous prime is 123033323227. The next prime is 123033323243. The reversal of 123033323231 is 132323330321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 123033323231 - 2² = 123033323227 is a prime.

It is a super-2 number, since 2×123033323231² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123033323231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123033323131) 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, 847511 + ... + 982008.

It is an arithmetic number, because the mean of its divisors is an integer number (9476913600).

Almost surely, 2^123033323231 is an apocalyptic number.

123033323231 is a deficient number, since it is larger than the sum of its proper divisors (28597294369).

123033323231 is a wasteful number, since it uses less digits than its factorization.

123033323231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830278.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 123033323231 its reverse (132323330321), we get a palindrome (255356653552).

The spelling of 123033323231 in words is "one hundred twenty-three billion, thirty-three million, three hundred twenty-three thousand, two hundred thirty-one".