231011635536330 has 128 divisors (see below), whose sum is σ = 626160367353600. Its totient is φ = 54030753638400.

The previous prime is 231011635536323. The next prime is 231011635536373. The reversal of 231011635536330 is 33635536110132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3505276 + ... + 21778664.

It is an arithmetic number, because the mean of its divisors is an integer number (4891877869950).

Almost surely, 2^{231011635536330} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231011635536330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313080183676800).

231011635536330 is an abundant number, since it is smaller than the sum of its proper divisors (395148731817270).

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

231011635536330 is a wasteful number, since it uses less digits than its factorization.

231011635536330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18274760.

The product of its (nonzero) digits is 437400, while the sum is 42.

The spelling of 231011635536330 in words is "two hundred thirty-one trillion, eleven billion, six hundred thirty-five million, five hundred thirty-six thousand, three hundred thirty".