11000011989 has 8 divisors (see below), whose sum is σ = 14667259680. Its totient is φ = 7333052816.

The previous prime is 11000011973. The next prime is 11000012017. The reversal of 11000011989 is 98911000011.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11000011989 - 2⁴ = 11000011973 is a prime.

It is a super-2 number, since 2×11000011989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000011889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43159 + ... + 154475.

It is an arithmetic number, because the mean of its divisors is an integer number (1833407460).

Almost surely, 2^11000011989 is an apocalyptic number.

It is an amenable number.

11000011989 is a deficient number, since it is larger than the sum of its proper divisors (3667247691).

11000011989 is a wasteful number, since it uses less digits than its factorization.

11000011989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144259.

The product of its (nonzero) digits is 648, while the sum is 30.

The spelling of 11000011989 in words is "eleven billion, eleven thousand, nine hundred eighty-nine".