2023432421 has 2 divisors, whose sum is σ = 2023432422. Its totient is φ = 2023432420.

The previous prime is 2023432409. The next prime is 2023432423. The reversal of 2023432421 is 1242343202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1034329921 + 989102500 = 32161^2 + 31450^2 .

It is a cyclic number.

It is not a de Polignac number, because 2023432421 - 2³⁰ = 949690597 is a prime.

Together with 2023432423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2023432423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011716210 + 1011716211.

It is an arithmetic number, because the mean of its divisors is an integer number (1011716211).

Almost surely, 2^2023432421 is an apocalyptic number.

It is an amenable number.

2023432421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2023432421 is an equidigital number, since it uses as much as digits as its factorization.

2023432421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2023432421 is about 44982.5790834630. The cubic root of 2023432421 is about 1264.8224575465.

Adding to 2023432421 its reverse (1242343202), we get a palindrome (3265775623).

The spelling of 2023432421 in words is "two billion, twenty-three million, four hundred thirty-two thousand, four hundred twenty-one".