123111330233131 has 16 divisors (see below), whose sum is σ = 125651959648000. Its totient is φ = 120592112132448.

The previous prime is 123111330233123. The next prime is 123111330233153. The reversal of 123111330233131 is 131332033111321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 123111330233131 - 2³ = 123111330233123 is a prime.

It is a super-2 number, since 2×123111330233131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123111330233131.

It is not an unprimeable number, because it can be changed into a prime (123111330234131) 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, 19486576 + ... + 25018978.

It is an arithmetic number, because the mean of its divisors is an integer number (7853247478000).

Almost surely, 2^{123111330233131} is an apocalyptic number.

123111330233131 is a deficient number, since it is larger than the sum of its proper divisors (2540629414869).

123111330233131 is a wasteful number, since it uses less digits than its factorization.

123111330233131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5534338.

The product of its (nonzero) digits is 2916, while the sum is 28.

Adding to 123111330233131 its reverse (131332033111321), we get a palindrome (254443363344452).

The spelling of 123111330233131 in words is "one hundred twenty-three trillion, one hundred eleven billion, three hundred thirty million, two hundred thirty-three thousand, one hundred thirty-one".