2001310023 has 8 divisors (see below), whose sum is σ = 2825378928. Its totient is φ = 1255723904.

The previous prime is 2001310019. The next prime is 2001310043. The reversal of 2001310023 is 3200131002.

It is a happy number.

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

It is not a de Polignac number, because 2001310023 - 2² = 2001310019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001309990 and 2001310008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001310013) 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, 19620636 + ... + 19620737.

It is an arithmetic number, because the mean of its divisors is an integer number (353172366).

Almost surely, 2^2001310023 is an apocalyptic number.

2001310023 is a deficient number, since it is larger than the sum of its proper divisors (824068905).

2001310023 is a wasteful number, since it uses less digits than its factorization.

2001310023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39241393.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2001310023 is about 44736.0036547745. The cubic root of 2001310023 is about 1260.1960774471.

Adding to 2001310023 its reverse (3200131002), we get a palindrome (5201441025).

It can be divided in two parts, 200131002 and 3, that multiplied together give a palindrome (600393006).

The spelling of 2001310023 in words is "two billion, one million, three hundred ten thousand, twenty-three".