13813990903 has 2 divisors, whose sum is σ = 13813990904. Its totient is φ = 13813990902.

The previous prime is 13813990777. The next prime is 13813990973. The reversal of 13813990903 is 30909931831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13813990903 - 2⁹ = 13813990391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13813990973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6906995451 + 6906995452.

It is an arithmetic number, because the mean of its divisors is an integer number (6906995452).

Almost surely, 2^13813990903 is an apocalyptic number.

13813990903 is a deficient number, since it is larger than the sum of its proper divisors (1).

13813990903 is an equidigital number, since it uses as much as digits as its factorization.

13813990903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 46.

The spelling of 13813990903 in words is "thirteen billion, eight hundred thirteen million, nine hundred ninety thousand, nine hundred three".