1002000023231 has 12 divisors (see below), whose sum is σ = 1037856236664. Its totient is φ = 967342908000.

The previous prime is 1002000023201. The next prime is 1002000023243. The reversal of 1002000023231 is 1323200002001.

It is a happy number.

It is not a de Polignac number, because 1002000023231 - 2²² = 1001995828927 is a prime.

It is a super-2 number, since 2×1002000023231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002000023201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8300456 + ... + 8420306.

It is an arithmetic number, because the mean of its divisors is an integer number (86488019722).

Almost surely, 2^{1002000023231} is an apocalyptic number.

1002000023231 is a deficient number, since it is larger than the sum of its proper divisors (35856213433).

1002000023231 is an equidigital number, since it uses as much as digits as its factorization.

1002000023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129850 (or 129821 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1002000023231 its reverse (1323200002001), we get a palindrome (2325200025232).

The spelling of 1002000023231 in words is "one trillion, two billion, twenty-three thousand, two hundred thirty-one".