2002312321023 has 64 divisors (see below), whose sum is σ = 3223317381120. Its totient is φ = 1081440201600.

The previous prime is 2002312321003. The next prime is 2002312321033. The reversal of 2002312321023 is 3201232132002.

It is a happy number.

It is not a de Polignac number, because 2002312321023 - 2²² = 2002308126719 is a prime.

It is a super-3 number, since 3×2002312321023³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002312321003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14587653 + ... + 14724273.

It is an arithmetic number, because the mean of its divisors is an integer number (50364334080).

Almost surely, 2^{2002312321023} is an apocalyptic number.

2002312321023 is a deficient number, since it is larger than the sum of its proper divisors (1221005060097).

2002312321023 is a wasteful number, since it uses less digits than its factorization.

2002312321023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137188.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 2002312321023 its reverse (3201232132002), we get a palindrome (5203544453025).

The spelling of 2002312321023 in words is "two trillion, two billion, three hundred twelve million, three hundred twenty-one thousand, twenty-three".