111002100020087 has 2 divisors, whose sum is σ = 111002100020088. Its totient is φ = 111002100020086.

The previous prime is 111002100019969. The next prime is 111002100020099. The reversal of 111002100020087 is 780020001200111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111002100020087 - 2¹² = 111002100015991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111002100020387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55501050010043 + 55501050010044.

It is an arithmetic number, because the mean of its divisors is an integer number (55501050010044).

Almost surely, 2^{111002100020087} is an apocalyptic number.

111002100020087 is a deficient number, since it is larger than the sum of its proper divisors (1).

111002100020087 is an equidigital number, since it uses as much as digits as its factorization.

111002100020087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 23.

Adding to 111002100020087 its reverse (780020001200111), we get a palindrome (891022101220198).

The spelling of 111002100020087 in words is "one hundred eleven trillion, two billion, one hundred million, twenty thousand, eighty-seven".