123532899316992 has 1440 divisors, whose sum is σ = 425269763702784. Its totient is φ = 35318616883200.

The previous prime is 123532899316873. The next prime is 123532899317011. The reversal of 123532899316992 is 299613998235321.

It is a happy number.

123532899316992 is a `hidden beast` number, since 1 + 2 + 3 + 532 + 89 + 9 + 3 + 1 + 6 + 9 + 9 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 123532899316992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 111997188313 + ... + 111997189415.

Almost surely, 2^{123532899316992} is an apocalyptic number.

123532899316992 is a gapful number since it is divisible by the number (12) 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 123532899316992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212634881851392).

123532899316992 is an abundant number, since it is smaller than the sum of its proper divisors (301736864385792).

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

123532899316992 is a wasteful number, since it uses less digits than its factorization.

123532899316992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557 (or 1534 counting only the distinct ones).

The product of its digits is 340122240, while the sum is 72.

The spelling of 123532899316992 in words is "one hundred twenty-three trillion, five hundred thirty-two billion, eight hundred ninety-nine million, three hundred sixteen thousand, nine hundred ninety-two".