123200311023 has 24 divisors (see below), whose sum is σ = 194921391600. Its totient is φ = 74636561664.

The previous prime is 123200311009. The next prime is 123200311067. The reversal of 123200311023 is 320113002321.

123200311023 is a `hidden beast` number, since 12 + 320 + 0 + 311 + 0 + 23 = 666.

It is not a de Polignac number, because 123200311023 - 2⁸ = 123200310767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123200310987 and 123200311005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123200311093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13878853 + ... + 13887726.

It is an arithmetic number, because the mean of its divisors is an integer number (8121724650).

Almost surely, 2^123200311023 is an apocalyptic number.

123200311023 is a deficient number, since it is larger than the sum of its proper divisors (71721080577).

123200311023 is a wasteful number, since it uses less digits than its factorization.

123200311023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27766631 (or 27766628 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 123200311023 its reverse (320113002321), we get a palindrome (443313313344).

The spelling of 123200311023 in words is "one hundred twenty-three billion, two hundred million, three hundred eleven thousand, twenty-three".