231204312021000 has 128 divisors (see below), whose sum is σ = 721523820476160. Its totient is φ = 61640263808000.

The previous prime is 231204312020939. The next prime is 231204312021079. The reversal of 231204312021000 is 120213402132.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4126045 + ... + 21895955.

It is an arithmetic number, because the mean of its divisors is an integer number (5636904847470).

Almost surely, 2^{231204312021000} is an apocalyptic number.

231204312021000 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 231204312021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360761910238080).

231204312021000 is an abundant number, since it is smaller than the sum of its proper divisors (490319508455160).

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

231204312021000 is a wasteful number, since it uses less digits than its factorization.

231204312021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17774272 (or 17774258 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 231204312021000 its reverse (120213402132), we get a palindrome (231324525423132).

The spelling of 231204312021000 in words is "two hundred thirty-one trillion, two hundred four billion, three hundred twelve million, twenty-one thousand".