231550431045450 has 192 divisors, whose sum is σ = 626865442329600. Its totient is φ = 56096151091200.

The previous prime is 231550431045379. The next prime is 231550431045469. The reversal of 231550431045450 is 54540134055132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 28022558019 + ... + 28022566281.

It is an arithmetic number, because the mean of its divisors is an integer number (3264924178800).

Almost surely, 2^{231550431045450} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231550431045450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313432721164800).

231550431045450 is an abundant number, since it is smaller than the sum of its proper divisors (395315011284150).

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

231550431045450 is a wasteful number, since it uses less digits than its factorization.

231550431045450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17517 (or 17512 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 231550431045450 in words is "two hundred thirty-one trillion, five hundred fifty billion, four hundred thirty-one million, forty-five thousand, four hundred fifty".