123112313230 has 16 divisors (see below), whose sum is σ = 221635354464. Its totient is φ = 49237549600.

The previous prime is 123112313201. The next prime is 123112313239. The reversal of 123112313230 is 32313211321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123112313239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851602 + ... + 985621.

It is an arithmetic number, because the mean of its divisors is an integer number (13852209654).

Almost surely, 2^123112313230 is an apocalyptic number.

123112313230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123112313230 is a deficient number, since it is larger than the sum of its proper divisors (98523041234).

123112313230 is a wasteful number, since it uses less digits than its factorization.

123112313230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843931.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123112313230 its reverse (32313211321), we get a palindrome (155425524551).

The spelling of 123112313230 in words is "one hundred twenty-three billion, one hundred twelve million, three hundred thirteen thousand, two hundred thirty".