123311233111110 has 256 divisors, whose sum is σ = 344276614656000. Its totient is φ = 27979093094400.

The previous prime is 123311233110953. The next prime is 123311233111111. The reversal of 123311233111110 is 11111332113321.

It is a super-2 number, since 2×123311233111110² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123311233111111) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 95315866 + ... + 96600914.

It is an arithmetic number, because the mean of its divisors is an integer number (1344830526000).

Almost surely, 2^{123311233111110} is an apocalyptic number.

123311233111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123311233111110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172138307328000).

123311233111110 is an abundant number, since it is smaller than the sum of its proper divisors (220965381544890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123311233111110 is a wasteful number, since it uses less digits than its factorization.

123311233111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285407.

The product of its (nonzero) digits is 324, while the sum is 24.

Adding to 123311233111110 its reverse (11111332113321), we get a palindrome (134422565224431).

The spelling of 123311233111110 in words is "one hundred twenty-three trillion, three hundred eleven billion, two hundred thirty-three million, one hundred eleven thousand, one hundred ten".