110020011989 has 16 divisors (see below), whose sum is σ = 111698915328. Its totient is φ = 108355588992.

The previous prime is 110020011973. The next prime is 110020012013. The reversal of 110020011989 is 989110020011.

It is a cyclic number.

It is not a de Polignac number, because 110020011989 - 2⁴ = 110020011973 is a prime.

It is a super-2 number, since 2×110020011989² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110020016989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18173087 + ... + 18179139.

It is an arithmetic number, because the mean of its divisors is an integer number (6981182208).

Almost surely, 2^110020011989 is an apocalyptic number.

It is an amenable number.

110020011989 is a deficient number, since it is larger than the sum of its proper divisors (1678903339).

110020011989 is a wasteful number, since it uses less digits than its factorization.

110020011989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7204.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 110020011989 in words is "one hundred ten billion, twenty million, eleven thousand, nine hundred eighty-nine".