231321223100032 has 96 divisors (see below), whose sum is σ = 499032606130380. Its totient is φ = 106759008165888.

The previous prime is 231321223099937. The next prime is 231321223100057. The reversal of 231321223100032 is 230001322123132.

It can be written as a sum of positive squares in 6 ways, for example, as 63972227013696 + 167348996086336 = 7998264^2 + 12936344^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 525805468 + ... + 526245220.

Almost surely, 2^{231321223100032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231321223100032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249516303065190).

231321223100032 is an abundant number, since it is smaller than the sum of its proper divisors (267711383030348).

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

231321223100032 is a wasteful number, since it uses less digits than its factorization.

231321223100032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464110 (or 464085 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 231321223100032 its reverse (230001322123132), we get a palindrome (461322545223164).

The spelling of 231321223100032 in words is "two hundred thirty-one trillion, three hundred twenty-one billion, two hundred twenty-three million, one hundred thousand, thirty-two".