123130133023212 has 120 divisors (see below), whose sum is σ = 367874203176480. Its totient is φ = 35179662251520.

The previous prime is 123130133023211. The next prime is 123130133023267. The reversal of 123130133023212 is 212320331031321.

123130133023212 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 3 + 0 + 1 + 330 + 2 + 321 + 2 = 666.

It is a super-2 number, since 2×123130133023212² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (123130133023211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 266007012 + ... + 266469492.

It is an arithmetic number, because the mean of its divisors is an integer number (3065618359804).

Almost surely, 2^{123130133023212} is an apocalyptic number.

123130133023212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123130133023212 is an abundant number, since it is smaller than the sum of its proper divisors (244744070153268).

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

123130133023212 is a wasteful number, since it uses less digits than its factorization.

123130133023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579893 (or 579882 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 123130133023212 its reverse (212320331031321), we get a palindrome (335450464054533).

The spelling of 123130133023212 in words is "one hundred twenty-three trillion, one hundred thirty billion, one hundred thirty-three million, twenty-three thousand, two hundred twelve".