11012209987 has 2 divisors, whose sum is σ = 11012209988. Its totient is φ = 11012209986.

The previous prime is 11012209973. The next prime is 11012210021. The reversal of 11012209987 is 78990221011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11012209987 - 2²³ = 11003821379 is a prime.

It is not a weakly prime, because it can be changed into another prime (11012209927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506104993 + 5506104994.

It is an arithmetic number, because the mean of its divisors is an integer number (5506104994).

Almost surely, 2^11012209987 is an apocalyptic number.

11012209987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012209987 is an equidigital number, since it uses as much as digits as its factorization.

11012209987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 40.

The spelling of 11012209987 in words is "eleven billion, twelve million, two hundred nine thousand, nine hundred eighty-seven".