11033231987 has 2 divisors, whose sum is σ = 11033231988. Its totient is φ = 11033231986.

The previous prime is 11033231977. The next prime is 11033232019. The reversal of 11033231987 is 78913233011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11033231987 - 2²² = 11029037683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11033231987.

It is not a weakly prime, because it can be changed into another prime (11033231977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5516615993 + 5516615994.

It is an arithmetic number, because the mean of its divisors is an integer number (5516615994).

Almost surely, 2^11033231987 is an apocalyptic number.

11033231987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11033231987 is an equidigital number, since it uses as much as digits as its factorization.

11033231987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

Adding to 11033231987 its reverse (78913233011), we get a palindrome (89946464998).

The spelling of 11033231987 in words is "eleven billion, thirty-three million, two hundred thirty-one thousand, nine hundred eighty-seven".