123312331122111 has 32 divisors (see below), whose sum is σ = 187769062195200. Its totient is φ = 79923837900960.

The previous prime is 123312331122067. The next prime is 123312331122137. The reversal of 123312331122111 is 111221133213321.

123312331122111 is a `hidden beast` number, since 1 + 2 + 3 + 3 + 123 + 311 + 221 + 1 + 1 = 666.

It is not a de Polignac number, because 123312331122111 - 2¹⁹ = 123312330597823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123312331122161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46977075 + ... + 49532516.

It is an arithmetic number, because the mean of its divisors is an integer number (5867783193600).

Almost surely, 2^{123312331122111} is an apocalyptic number.

123312331122111 is a deficient number, since it is larger than the sum of its proper divisors (64456731073089).

123312331122111 is a wasteful number, since it uses less digits than its factorization.

123312331122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96510916 (or 96510910 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

Adding to 123312331122111 its reverse (111221133213321), we get a palindrome (234533464335432).

The spelling of 123312331122111 in words is "one hundred twenty-three trillion, three hundred twelve billion, three hundred thirty-one million, one hundred twenty-two thousand, one hundred eleven".