111021103087 has 2 divisors, whose sum is σ = 111021103088. Its totient is φ = 111021103086.

The previous prime is 111021103079. The next prime is 111021103163. The reversal of 111021103087 is 780301120111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111021103087 - 2³ = 111021103079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111021103387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510551543 + 55510551544.

It is an arithmetic number, because the mean of its divisors is an integer number (55510551544).

Almost surely, 2^111021103087 is an apocalyptic number.

111021103087 is a deficient number, since it is larger than the sum of its proper divisors (1).

111021103087 is an equidigital number, since it uses as much as digits as its factorization.

111021103087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 25.

Adding to 111021103087 its reverse (780301120111), we get a palindrome (891322223198).

The spelling of 111021103087 in words is "one hundred eleven billion, twenty-one million, one hundred three thousand, eighty-seven".