123013113210 has 320 divisors, whose sum is σ = 372168276480. Its totient is φ = 28944760320.

The previous prime is 123013113191. The next prime is 123013113247. The reversal of 123013113210 is 12311310321.

123013113210 is a `hidden beast` number, since 1 + 2 + 30 + 1 + 311 + 321 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 31451155 + ... + 31455065.

It is an arithmetic number, because the mean of its divisors is an integer number (1163025864).

Almost surely, 2^123013113210 is an apocalyptic number.

123013113210 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 123013113210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186084138240).

123013113210 is an abundant number, since it is smaller than the sum of its proper divisors (249155163270).

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

123013113210 is a wasteful number, since it uses less digits than its factorization.

123013113210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4075 (or 4066 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 123013113210 its reverse (12311310321), we get a palindrome (135324423531).

The spelling of 123013113210 in words is "one hundred twenty-three billion, thirteen million, one hundred thirteen thousand, two hundred ten".