231320223000 has 192 divisors, whose sum is σ = 815857099200. Its totient is φ = 59003366400.

The previous prime is 231320222993. The next prime is 231320223007. The reversal of 231320223000 is 322023132.

It is a happy number.

231320223000 is a `hidden beast` number, since 23 + 1 + 320 + 22 + 300 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (231320222993) and next prime (231320223007).

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 (231320223007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 351745 + ... + 765744.

It is an arithmetic number, because the mean of its divisors is an integer number (4249255725).

Almost surely, 2^231320223000 is an apocalyptic number.

231320223000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231320223000 is an abundant number, since it is smaller than the sum of its proper divisors (584536876200).

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

231320223000 is a wasteful number, since it uses less digits than its factorization.

231320223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117539 (or 1117522 counting only the distinct ones).

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

Adding to 231320223000 its reverse (322023132), we get a palindrome (231642246132).

The spelling of 231320223000 in words is "two hundred thirty-one billion, three hundred twenty million, two hundred twenty-three thousand".