203430923 has 2 divisors, whose sum is σ = 203430924. Its totient is φ = 203430922.

The previous prime is 203430869. The next prime is 203430943. The reversal of 203430923 is 329034302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203430923 - 2⁶ = 203430859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203430892 and 203430901.

It is not a weakly prime, because it can be changed into another prime (203430943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101715461 + 101715462.

It is an arithmetic number, because the mean of its divisors is an integer number (101715462).

Almost surely, 2^203430923 is an apocalyptic number.

203430923 is a deficient number, since it is larger than the sum of its proper divisors (1).

203430923 is an equidigital number, since it uses as much as digits as its factorization.

203430923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 203430923 is about 14262.9212645937. The cubic root of 203430923 is about 588.1286325626.

The spelling of 203430923 in words is "two hundred three million, four hundred thirty thousand, nine hundred twenty-three".