111361010503 has 2 divisors, whose sum is σ = 111361010504. Its totient is φ = 111361010502.

The previous prime is 111361010413. The next prime is 111361010507. The reversal of 111361010503 is 305010163111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111361010503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111361010507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55680505251 + 55680505252.

It is an arithmetic number, because the mean of its divisors is an integer number (55680505252).

Almost surely, 2^111361010503 is an apocalyptic number.

111361010503 is a deficient number, since it is larger than the sum of its proper divisors (1).

111361010503 is an equidigital number, since it uses as much as digits as its factorization.

111361010503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 22.

Adding to 111361010503 its reverse (305010163111), we get a palindrome (416371173614).

The spelling of 111361010503 in words is "one hundred eleven billion, three hundred sixty-one million, ten thousand, five hundred three".