231530153200000 has 384 divisors, whose sum is σ = 601973248746240. Its totient is φ = 88529591040000.

The previous prime is 231530153199949. The next prime is 231530153200001. The reversal of 231530153200000 is 2351035132.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231530153200001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16440392959 + ... + 16440407041.

It is an arithmetic number, because the mean of its divisors is an integer number (1567638668610).

Almost surely, 2^{231530153200000} is an apocalyptic number.

231530153200000 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 231530153200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300986624373120).

231530153200000 is an abundant number, since it is smaller than the sum of its proper divisors (370443095546240).

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

231530153200000 is an equidigital number, since it uses as much as digits as its factorization.

231530153200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15932 (or 15900 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The spelling of 231530153200000 in words is "two hundred thirty-one trillion, five hundred thirty billion, one hundred fifty-three million, two hundred thousand".