123121223130300 has 72 divisors (see below), whose sum is σ = 356507102137200. Its totient is φ = 32806854904320.

The previous prime is 123121223130299. The next prime is 123121223130319. The reversal of 123121223130300 is 3031322121321.

It is a super-2 number, since 2×123121223130300² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158808055 + ... + 159581454.

Almost surely, 2^{123121223130300} is an apocalyptic number.

123121223130300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123121223130300 is an abundant number, since it is smaller than the sum of its proper divisors (233385879006900).

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

123121223130300 is a wasteful number, since it uses less digits than its factorization.

123121223130300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318390815 (or 318390808 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 123121223130300 its reverse (3031322121321), we get a palindrome (126152545251621).

The spelling of 123121223130300 in words is "one hundred twenty-three trillion, one hundred twenty-one billion, two hundred twenty-three million, one hundred thirty thousand, three hundred".