20203113103 has 2 divisors, whose sum is σ = 20203113104. Its totient is φ = 20203113102.

The previous prime is 20203113023. The next prime is 20203113113. The reversal of 20203113103 is 30131130202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20203113103 - 2²¹ = 20201015951 is a prime.

It is a super-2 number, since 2×20203113103² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20203113113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101556551 + 10101556552.

It is an arithmetic number, because the mean of its divisors is an integer number (10101556552).

Almost surely, 2^20203113103 is an apocalyptic number.

20203113103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203113103 is an equidigital number, since it uses as much as digits as its factorization.

20203113103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20203113103 its reverse (30131130202), we get a palindrome (50334243305).

The spelling of 20203113103 in words is "twenty billion, two hundred three million, one hundred thirteen thousand, one hundred three".