123111013233230 has 64 divisors (see below), whose sum is σ = 251462971730880. Its totient is φ = 42985122969600.

The previous prime is 123111013233137. The next prime is 123111013233281. The reversal of 123111013233230 is 32332310111321.

It is a self number, because there is not a number n which added to its sum of digits gives 123111013233230.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 106032539 + ... + 107187318.

It is an arithmetic number, because the mean of its divisors is an integer number (3929108933295).

Almost surely, 2^{123111013233230} is an apocalyptic number.

123111013233230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123111013233230 is an abundant number, since it is smaller than the sum of its proper divisors (128351958497650).

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

123111013233230 is a wasteful number, since it uses less digits than its factorization.

123111013233230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213220085.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 123111013233230 its reverse (32332310111321), we get a palindrome (155443323344551).

The spelling of 123111013233230 in words is "one hundred twenty-three trillion, one hundred eleven billion, thirteen million, two hundred thirty-three thousand, two hundred thirty".