231021333213000 has 1024 divisors, whose sum is σ = 850618400486400. Its totient is φ = 51580108800000.

The previous prime is 231021333212959. The next prime is 231021333213019. The reversal of 231021333213000 is 312333120132.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 4843089150 + ... + 4843136850.

It is an arithmetic number, because the mean of its divisors is an integer number (830682031725).

Almost surely, 2^{231021333213000} is an apocalyptic number.

231021333213000 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 231021333213000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425309200243200).

231021333213000 is an abundant number, since it is smaller than the sum of its proper divisors (619597067273400).

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

231021333213000 is a wasteful number, since it uses less digits than its factorization.

231021333213000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47939 (or 47925 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 231021333213000 its reverse (312333120132), we get a palindrome (231333666333132).

The spelling of 231021333213000 in words is "two hundred thirty-one trillion, twenty-one billion, three hundred thirty-three million, two hundred thirteen thousand".