203312423 has 2 divisors, whose sum is σ = 203312424. Its totient is φ = 203312422.

The previous prime is 203312419. The next prime is 203312429. The reversal of 203312423 is 324213302.

203312423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203312423 - 2² = 203312419 is a prime.

It is a super-2 number, since 2×203312423² = 82671882692261858, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 203312395 and 203312404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203312429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101656211 + 101656212.

It is an arithmetic number, because the mean of its divisors is an integer number (101656212).

Almost surely, 2^203312423 is an apocalyptic number.

203312423 is a deficient number, since it is larger than the sum of its proper divisors (1).

203312423 is an equidigital number, since it uses as much as digits as its factorization.

203312423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 203312423 is about 14258.7665315062. The cubic root of 203312423 is about 588.0144139725.

Adding to 203312423 its reverse (324213302), we get a palindrome (527525725).

The spelling of 203312423 in words is "two hundred three million, three hundred twelve thousand, four hundred twenty-three".