123040010322312 has 128 divisors (see below), whose sum is σ = 314634501619200. Its totient is φ = 40084087680000.

The previous prime is 123040010322293. The next prime is 123040010322377. The reversal of 123040010322312 is 213223010040321.

It is a super-2 number, since 2×123040010322312² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194096112 + ... + 194728992.

It is an arithmetic number, because the mean of its divisors is an integer number (2458082043900).

Almost surely, 2^{123040010322312} is an apocalyptic number.

123040010322312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123040010322312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157317250809600).

123040010322312 is an abundant number, since it is smaller than the sum of its proper divisors (191594491296888).

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

123040010322312 is a wasteful number, since it uses less digits than its factorization.

123040010322312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633747 (or 633743 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 123040010322312 its reverse (213223010040321), we get a palindrome (336263020362633).

The spelling of 123040010322312 in words is "one hundred twenty-three trillion, forty billion, ten million, three hundred twenty-two thousand, three hundred twelve".