123200313111 has 24 divisors (see below), whose sum is σ = 185328000000. Its totient is φ = 78769102272.

The previous prime is 123200313059. The next prime is 123200313113. The reversal of 123200313111 is 111313002321.

123200313111 is a `hidden beast` number, since 1 + 2 + 320 + 0 + 31 + 311 + 1 = 666.

It is not a de Polignac number, because 123200313111 - 2¹⁹ = 123199788823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123200313113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1545111 + ... + 1622888.

It is an arithmetic number, because the mean of its divisors is an integer number (7722000000).

Almost surely, 2^123200313111 is an apocalyptic number.

123200313111 is a deficient number, since it is larger than the sum of its proper divisors (62127686889).

123200313111 is a wasteful number, since it uses less digits than its factorization.

123200313111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168183 (or 3168180 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 123200313111 its reverse (111313002321), we get a palindrome (234513315432).

The spelling of 123200313111 in words is "one hundred twenty-three billion, two hundred million, three hundred thirteen thousand, one hundred eleven".