2023421399 has 2 divisors, whose sum is σ = 2023421400. Its totient is φ = 2023421398.

The previous prime is 2023421377. The next prime is 2023421431. The reversal of 2023421399 is 9931243202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2023421399 - 2¹² = 2023417303 is a prime.

It is a super-2 number, since 2×2023421399² = 8188468315862234402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2023921399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011710699 + 1011710700.

It is an arithmetic number, because the mean of its divisors is an integer number (1011710700).

Almost surely, 2^2023421399 is an apocalyptic number.

2023421399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2023421399 is an equidigital number, since it uses as much as digits as its factorization.

2023421399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 2023421399 is about 44982.4565692004. The cubic root of 2023421399 is about 1264.8201609706.

The spelling of 2023421399 in words is "two billion, twenty-three million, four hundred twenty-one thousand, three hundred ninety-nine".