123100312430040 has 128 divisors (see below), whose sum is σ = 402877753516800. Its totient is φ = 29842203409920.

The previous prime is 123100312430023. The next prime is 123100312430041. The reversal of 123100312430040 is 40034213001321.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123100312430041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151207914 + ... + 152019846.

It is an arithmetic number, because the mean of its divisors is an integer number (3147482449350).

Almost surely, 2^{123100312430040} is an apocalyptic number.

123100312430040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123100312430040 is an abundant number, since it is smaller than the sum of its proper divisors (279777441086760).

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

123100312430040 is a wasteful number, since it uses less digits than its factorization.

123100312430040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926817 (or 926813 counting only the distinct ones).

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

Adding to 123100312430040 its reverse (40034213001321), we get a palindrome (163134525431361).

The spelling of 123100312430040 in words is "one hundred twenty-three trillion, one hundred billion, three hundred twelve million, four hundred thirty thousand, forty".