2002011323231 has 8 divisors (see below), whose sum is σ = 2063833362960. Its totient is φ = 1941118938432.

The previous prime is 2002011323197. The next prime is 2002011323239. The reversal of 2002011323231 is 1323231102002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002011323231 is a prime.

It is a super-2 number, since 2×2002011323231² (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 (2002011323239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232409360 + ... + 232417973.

It is an arithmetic number, because the mean of its divisors is an integer number (257979170370).

Almost surely, 2^{2002011323231} is an apocalyptic number.

2002011323231 is a deficient number, since it is larger than the sum of its proper divisors (61822039729).

2002011323231 is an equidigital number, since it uses as much as digits as its factorization.

2002011323231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464827465.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2002011323231 its reverse (1323231102002), we get a palindrome (3325242425233).

The spelling of 2002011323231 in words is "two trillion, two billion, eleven million, three hundred twenty-three thousand, two hundred thirty-one".