13115394503 has 2 divisors, whose sum is σ = 13115394504. Its totient is φ = 13115394502.

The previous prime is 13115394497. The next prime is 13115394553. The reversal of 13115394503 is 30549351131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13115394503 - 2⁸ = 13115394247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13115394553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6557697251 + 6557697252.

It is an arithmetic number, because the mean of its divisors is an integer number (6557697252).

Almost surely, 2^13115394503 is an apocalyptic number.

13115394503 is a deficient number, since it is larger than the sum of its proper divisors (1).

13115394503 is an equidigital number, since it uses as much as digits as its factorization.

13115394503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 35.

The spelling of 13115394503 in words is "thirteen billion, one hundred fifteen million, three hundred ninety-four thousand, five hundred three".