118511009503 has 2 divisors, whose sum is σ = 118511009504. Its totient is φ = 118511009502.

The previous prime is 118511009497. The next prime is 118511009537. The reversal of 118511009503 is 305900115811.

It is a happy number.

It is an a-pointer prime, because the next prime (118511009537) can be obtained adding 118511009503 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118511009503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118511009563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59255504751 + 59255504752.

It is an arithmetic number, because the mean of its divisors is an integer number (59255504752).

Almost surely, 2^118511009503 is an apocalyptic number.

118511009503 is a deficient number, since it is larger than the sum of its proper divisors (1).

118511009503 is an equidigital number, since it uses as much as digits as its factorization.

118511009503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 34.

The spelling of 118511009503 in words is "one hundred eighteen billion, five hundred eleven million, nine thousand, five hundred three".