123231331321300 has 144 divisors (see below), whose sum is σ = 271568328514560. Its totient is φ = 48532093120000.

The previous prime is 123231331321283. The next prime is 123231331321303. The reversal of 123231331321300 is 3123133132321.

It is a happy number.

It is a super-2 number, since 2×123231331321300² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123231331321303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4200242031 + ... + 4200271369.

It is an arithmetic number, because the mean of its divisors is an integer number (1885891170240).

Almost surely, 2^{123231331321300} is an apocalyptic number.

123231331321300 is a gapful number since it is divisible by the number (10) 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 123231331321300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135784164257280).

123231331321300 is an abundant number, since it is smaller than the sum of its proper divisors (148336997193260).

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

123231331321300 is a wasteful number, since it uses less digits than its factorization.

123231331321300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31762 (or 31755 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 123231331321300 its reverse (3123133132321), we get a palindrome (126354464453621).

The spelling of 123231331321300 in words is "one hundred twenty-three trillion, two hundred thirty-one billion, three hundred thirty-one million, three hundred twenty-one thousand, three hundred".