1102019987 has 2 divisors, whose sum is σ = 1102019988. Its totient is φ = 1102019986.

The previous prime is 1102019959. The next prime is 1102020013. The reversal of 1102019987 is 7899102011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1102019987 - 2¹⁰ = 1102018963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1102019987.

It is not a weakly prime, because it can be changed into another prime (1102019927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551009993 + 551009994.

It is an arithmetic number, because the mean of its divisors is an integer number (551009994).

Almost surely, 2^1102019987 is an apocalyptic number.

1102019987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102019987 is an equidigital number, since it uses as much as digits as its factorization.

1102019987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 38.

The square root of 1102019987 is about 33196.6863858428. The cubic root of 1102019987 is about 1032.9116055569.

The spelling of 1102019987 in words is "one billion, one hundred two million, nineteen thousand, nine hundred eighty-seven".