1115115503 has 2 divisors, whose sum is σ = 1115115504. Its totient is φ = 1115115502.

The previous prime is 1115115487. The next prime is 1115115571. The reversal of 1115115503 is 3055115111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1115115503 - 2⁴ = 1115115487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115145503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557557751 + 557557752.

It is an arithmetic number, because the mean of its divisors is an integer number (557557752).

Almost surely, 2^1115115503 is an apocalyptic number.

1115115503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115115503 is an equidigital number, since it uses as much as digits as its factorization.

1115115503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 375, while the sum is 23.

The square root of 1115115503 is about 33393.3451903220. The cubic root of 1115115503 is about 1036.9869345527.

The spelling of 1115115503 in words is "one billion, one hundred fifteen million, one hundred fifteen thousand, five hundred three".