23400203 has 2 divisors, whose sum is σ = 23400204. Its totient is φ = 23400202.

The previous prime is 23400163. The next prime is 23400239. The reversal of 23400203 is 30200432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23400203 - 2¹⁰ = 23399179 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23400253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11700101 + 11700102.

It is an arithmetic number, because the mean of its divisors is an integer number (11700102).

Almost surely, 2^23400203 is an apocalyptic number.

23400203 is a deficient number, since it is larger than the sum of its proper divisors (1).

23400203 is an equidigital number, since it uses as much as digits as its factorization.

23400203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 23400203 is about 4837.3756314762. The cubic root of 23400203 is about 286.0266777077.

Adding to 23400203 its reverse (30200432), we get a palindrome (53600635).

The spelling of 23400203 in words is "twenty-three million, four hundred thousand, two hundred three".