2023990109 has 4 divisors (see below), whose sum is σ = 2048375616. Its totient is φ = 1999604604.

The previous prime is 2023990061. The next prime is 2023990151. The reversal of 2023990109 is 9010993202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2023990109 - 2⁸ = 2023989853 is a prime.

It is a super-2 number, since 2×2023990109² = 8193071922659663762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023090109) 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 3 ways as a sum of consecutive naturals, for example, 12192629 + ... + 12192794.

It is an arithmetic number, because the mean of its divisors is an integer number (512093904).

Almost surely, 2^2023990109 is an apocalyptic number.

It is an amenable number.

2023990109 is a deficient number, since it is larger than the sum of its proper divisors (24385507).

2023990109 is an equidigital number, since it uses as much as digits as its factorization.

2023990109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24385506.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 2023990109 is about 44988.7775895278. Note that the first 3 decimals coincide. The cubic root of 2023990109 is about 1264.9386481517.

The spelling of 2023990109 in words is "two billion, twenty-three million, nine hundred ninety thousand, one hundred nine".