1002321023 has 8 divisors (see below), whose sum is σ = 1094295936. Its totient is φ = 910488600.

The previous prime is 1002321007. The next prime is 1002321029. The reversal of 1002321023 is 3201232001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1002321023 - 2⁴ = 1002321007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002320989 and 1002321007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002321029) 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, 20633 + ... + 49298.

It is an arithmetic number, because the mean of its divisors is an integer number (136786992).

Almost surely, 2^1002321023 is an apocalyptic number.

1002321023 is a deficient number, since it is larger than the sum of its proper divisors (91974913).

1002321023 is a wasteful number, since it uses less digits than its factorization.

1002321023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71245.

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

The square root of 1002321023 is about 31659.4539276975. The cubic root of 1002321023 is about 1000.7730765320.

Adding to 1002321023 its reverse (3201232001), we get a palindrome (4203553024).

The spelling of 1002321023 in words is "one billion, two million, three hundred twenty-one thousand, twenty-three".