203113901 has 2 divisors, whose sum is σ = 203113902. Its totient is φ = 203113900.

The previous prime is 203113853. The next prime is 203113913. The reversal of 203113901 is 109311302.

203113901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162537001 + 40576900 = 12749^2 + 6370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203113901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203113921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101556950 + 101556951.

It is an arithmetic number, because the mean of its divisors is an integer number (101556951).

Almost surely, 2^203113901 is an apocalyptic number.

It is an amenable number.

203113901 is a deficient number, since it is larger than the sum of its proper divisors (1).

203113901 is an equidigital number, since it uses as much as digits as its factorization.

203113901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 203113901 is about 14251.8034297418. The cubic root of 203113901 is about 587.8229650834.

The spelling of 203113901 in words is "two hundred three million, one hundred thirteen thousand, nine hundred one".