10115501111 has 2 divisors, whose sum is σ = 10115501112. Its totient is φ = 10115501110.

The previous prime is 10115501087. The next prime is 10115501113. The reversal of 10115501111 is 11110551101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10115501111 is a prime.

It is a Sophie Germain prime.

Together with 10115501113, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10115501111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10115501113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5057750555 + 5057750556.

It is an arithmetic number, because the mean of its divisors is an integer number (5057750556).

Almost surely, 2^10115501111 is an apocalyptic number.

10115501111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10115501111 is an equidigital number, since it uses as much as digits as its factorization.

10115501111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25, while the sum is 17.

The spelling of 10115501111 in words is "ten billion, one hundred fifteen million, five hundred one thousand, one hundred eleven".