231323033000 has 64 divisors (see below), whose sum is σ = 541966885200. Its totient is φ = 92414515200.

The previous prime is 231323032999. The next prime is 231323033003. The reversal of 231323033000 is 330323132.

It can be written as a sum of positive squares in 8 ways, for example, as 832784164 + 230490248836 = 28858^2 + 480094^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (231323033003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 666032 + ... + 951968.

Almost surely, 2^231323033000 is an apocalyptic number.

231323033000 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 231323033000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270983442600).

231323033000 is an abundant number, since it is smaller than the sum of its proper divisors (310643852200).

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

231323033000 is a wasteful number, since it uses less digits than its factorization.

231323033000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286767 (or 286753 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 231323033000 its reverse (330323132), we get a palindrome (231653356132).

The spelling of 231323033000 in words is "two hundred thirty-one billion, three hundred twenty-three million, thirty-three thousand".