2023503321 has 16 divisors (see below), whose sum is σ = 3084220800. Its totient is φ = 1155992448.

The previous prime is 2023503301. The next prime is 2023503329. The reversal of 2023503321 is 1233053202.

It is not a de Polignac number, because 2023503321 - 2⁶ = 2023503257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2023503329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92815 + ... + 112523.

It is an arithmetic number, because the mean of its divisors is an integer number (192763800).

Almost surely, 2^2023503321 is an apocalyptic number.

2023503321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2023503321 is a deficient number, since it is larger than the sum of its proper divisors (1060717479).

2023503321 is a wasteful number, since it uses less digits than its factorization.

2023503321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24608.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 2023503321 is about 44983.3671594291. The cubic root of 2023503321 is about 1264.8372302769.

Adding to 2023503321 its reverse (1233053202), we get a palindrome (3256556523).

The spelling of 2023503321 in words is "two billion, twenty-three million, five hundred three thousand, three hundred twenty-one".