203113343 has 2 divisors, whose sum is σ = 203113344. Its totient is φ = 203113342.

The previous prime is 203113307. The next prime is 203113369. The reversal of 203113343 is 343311302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203113343 - 2⁶ = 203113279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203163343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101556671 + 101556672.

It is an arithmetic number, because the mean of its divisors is an integer number (101556672).

Almost surely, 2^203113343 is an apocalyptic number.

203113343 is a deficient number, since it is larger than the sum of its proper divisors (1).

203113343 is an equidigital number, since it uses as much as digits as its factorization.

203113343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 203113343 is about 14251.7838532585. The cubic root of 203113343 is about 587.8224267885.

Adding to 203113343 its reverse (343311302), we get a palindrome (546424645).

The spelling of 203113343 in words is "two hundred three million, one hundred thirteen thousand, three hundred forty-three".