21023231013000 has 96 divisors (see below), whose sum is σ = 71058520854360. Its totient is φ = 5606194934400.

The previous prime is 21023231012989. The next prime is 21023231013023. The reversal of 21023231013000 is 31013232012.

21023231013000 is a `hidden beast` number, since 21 + 0 + 2 + 32 + 310 + 1 + 300 + 0 = 666.

21023231013000 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3172082109156 + 17851148903844 = 1781034^2 + 4225062^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1167948279 + ... + 1167966278.

Almost surely, 2^{21023231013000} is an apocalyptic number.

21023231013000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21023231013000 is an abundant number, since it is smaller than the sum of its proper divisors (50035289841360).

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

21023231013000 is a wasteful number, since it uses less digits than its factorization.

21023231013000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335914584 (or 2335914567 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21023231013000 its reverse (31013232012), we get a palindrome (21054244245012).

The spelling of 21023231013000 in words is "twenty-one trillion, twenty-three billion, two hundred thirty-one million, thirteen thousand".