1100018987 has 2 divisors, whose sum is σ = 1100018988. Its totient is φ = 1100018986.

The previous prime is 1100018939. The next prime is 1100019001. The reversal of 1100018987 is 7898100011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1100018987 - 2¹⁶ = 1099953451 is a prime.

It is not a weakly prime, because it can be changed into another prime (1100018287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550009493 + 550009494.

It is an arithmetic number, because the mean of its divisors is an integer number (550009494).

Almost surely, 2^1100018987 is an apocalyptic number.

1100018987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100018987 is an equidigital number, since it uses as much as digits as its factorization.

1100018987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 35.

The square root of 1100018987 is about 33166.5341421138. The cubic root of 1100018987 is about 1032.2860547866.

Adding to 1100018987 its reverse (7898100011), we get a palindrome (8998118998).

The spelling of 1100018987 in words is "one billion, one hundred million, eighteen thousand, nine hundred eighty-seven".