231535050000 has 240 divisors, whose sum is σ = 748822947264. Its totient is φ = 61643200000.

The previous prime is 231535049971. The next prime is 231535050001. The reversal of 231535050000 is 50535132.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (231535050001) 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, 177149347 + ... + 177150653.

Almost surely, 2^231535050000 is an apocalyptic number.

231535050000 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 231535050000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374411473632).

231535050000 is an abundant number, since it is smaller than the sum of its proper divisors (517287897264).

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

231535050000 is a wasteful number, since it uses less digits than its factorization.

231535050000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524 (or 2498 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 24.

Adding to 231535050000 its reverse (50535132), we get a palindrome (231585585132).

The spelling of 231535050000 in words is "two hundred thirty-one billion, five hundred thirty-five million, fifty thousand".