10002321023 has 4 divisors (see below), whose sum is σ = 10004365968. Its totient is φ = 10000276080.

The previous prime is 10002321019. The next prime is 10002321041. The reversal of 10002321023 is 32012320001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10002321023 - 2² = 10002321019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10002320989 and 10002321007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002321223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1015118 + ... + 1024923.

It is an arithmetic number, because the mean of its divisors is an integer number (2501091492).

Almost surely, 2^10002321023 is an apocalyptic number.

10002321023 is a deficient number, since it is larger than the sum of its proper divisors (2044945).

10002321023 is an equidigital number, since it uses as much as digits as its factorization.

10002321023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044944.

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

Adding to 10002321023 its reverse (32012320001), we get a palindrome (42014641024).

The spelling of 10002321023 in words is "ten billion, two million, three hundred twenty-one thousand, twenty-three".