203430379 has 2 divisors, whose sum is σ = 203430380. Its totient is φ = 203430378.

The previous prime is 203430319. The next prime is 203430413. The reversal of 203430379 is 973034302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203430379 - 2¹⁹ = 202906091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203430379.

It is not a weakly prime, because it can be changed into another prime (203430319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101715189 + 101715190.

It is an arithmetic number, because the mean of its divisors is an integer number (101715190).

Almost surely, 2^203430379 is an apocalyptic number.

203430379 is a deficient number, since it is larger than the sum of its proper divisors (1).

203430379 is an equidigital number, since it uses as much as digits as its factorization.

203430379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 203430379 is about 14262.9021941539. The cubic root of 203430379 is about 588.1281083187.

The spelling of 203430379 in words is "two hundred three million, four hundred thirty thousand, three hundred seventy-nine".