123323131200 has 168 divisors, whose sum is σ = 415538444512. Its totient is φ = 31997306880.

The previous prime is 123323131199. The next prime is 123323131231. The reversal of 123323131200 is 2131323321.

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, 169594 + ... + 524793.

Almost surely, 2^123323131200 is an apocalyptic number.

123323131200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123323131200 is an abundant number, since it is smaller than the sum of its proper divisors (292215313312).

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

123323131200 is a wasteful number, since it uses less digits than its factorization.

123323131200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694449 (or 694434 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123323131200 its reverse (2131323321), we get a palindrome (125454454521).

It can be divided in two parts, 123 and 323131200, that added together give a palindrome (323131323).

The spelling of 123323131200 in words is "one hundred twenty-three billion, three hundred twenty-three million, one hundred thirty-one thousand, two hundred".