231332013330 has 128 divisors (see below), whose sum is σ = 642610630656. Its totient is φ = 52673510400.

The previous prime is 231332013317. The next prime is 231332013359. The reversal of 231332013330 is 33310233132.

It is a super-2 number, since 2×231332013330² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231332013330.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2712519 + ... + 2796501.

It is an arithmetic number, because the mean of its divisors is an integer number (5020395552).

Almost surely, 2^231332013330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231332013330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321305315328).

231332013330 is an abundant number, since it is smaller than the sum of its proper divisors (411278617326).

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

231332013330 is a wasteful number, since it uses less digits than its factorization.

231332013330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84512.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 231332013330 its reverse (33310233132), we get a palindrome (264642246462).

The spelling of 231332013330 in words is "two hundred thirty-one billion, three hundred thirty-two million, thirteen thousand, three hundred thirty".