231532453405120 has 224 divisors, whose sum is σ = 650449826205696. Its totient is φ = 76818873139200.

The previous prime is 231532453405103. The next prime is 231532453405133. The reversal of 231532453405120 is 21504354235132.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2516529039 + ... + 2516621041.

Almost surely, 2^{231532453405120} is an apocalyptic number.

231532453405120 is a gapful number since it is divisible by the number (20) 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 231532453405120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325224913102848).

231532453405120 is an abundant number, since it is smaller than the sum of its proper divisors (418917372800576).

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

231532453405120 is a wasteful number, since it uses less digits than its factorization.

231532453405120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128299 (or 128289 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 231532453405120 in words is "two hundred thirty-one trillion, five hundred thirty-two billion, four hundred fifty-three million, four hundred five thousand, one hundred twenty".