231302223000 has 448 divisors, whose sum is σ = 820116198720. Its totient is φ = 61026048000.

The previous prime is 231302222959. The next prime is 231302223001. The reversal of 231302223000 is 322203132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231302223001) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 70711365 + ... + 70714635.

It is an arithmetic number, because the mean of its divisors is an integer number (1830616515).

Almost surely, 2^231302223000 is an apocalyptic number.

231302223000 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 231302223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410058099360).

231302223000 is an abundant number, since it is smaller than the sum of its proper divisors (588813975720).

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

231302223000 is an equidigital number, since it uses as much as digits as its factorization.

231302223000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407 (or 3378 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 231302223000 its reverse (322203132), we get a palindrome (231624426132).

The spelling of 231302223000 in words is "two hundred thirty-one billion, three hundred two million, two hundred twenty-three thousand".