1002031023 has 64 divisors (see below), whose sum is σ = 1610219520. Its totient is φ = 542505600.

The previous prime is 1002030989. The next prime is 1002031031. The reversal of 1002031023 is 3201302001.

It is a happy number.

It is not a de Polignac number, because 1002031023 - 2⁸ = 1002030767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002031523) 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, 5535993 + ... + 5536173.

It is an arithmetic number, because the mean of its divisors is an integer number (25159680).

Almost surely, 2^1002031023 is an apocalyptic number.

1002031023 is a deficient number, since it is larger than the sum of its proper divisors (608188497).

1002031023 is a wasteful number, since it uses less digits than its factorization.

1002031023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388.

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

The square root of 1002031023 is about 31654.8736058131. The cubic root of 1002031023 is about 1000.6765498438.

Adding to 1002031023 its reverse (3201302001), we get a palindrome (4203333024).

The spelling of 1002031023 in words is "one billion, two million, thirty-one thousand, twenty-three".