1000120120989 has 8 divisors (see below), whose sum is σ = 1454720176032. Its totient is φ = 606133406640.

The previous prime is 1000120120939. The next prime is 1000120120991. The reversal of 1000120120989 is 9890210210001.

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

It is not a de Polignac number, because 1000120120989 - 2¹¹ = 1000120118941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 30306670333 = 1000120120989 / (1 + 0 + 0 + 0 + 1 + 2 + 0 + 1 + 2 + 0 + 9 + 8 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000120120939) 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, 15153335134 + ... + 15153335199.

It is an arithmetic number, because the mean of its divisors is an integer number (181840022004).

Almost surely, 2^{1000120120989} is an apocalyptic number.

It is an amenable number.

1000120120989 is a deficient number, since it is larger than the sum of its proper divisors (454600055043).

1000120120989 is a wasteful number, since it uses less digits than its factorization.

1000120120989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30306670347.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 1000120120989 in words is "one trillion, one hundred twenty million, one hundred twenty thousand, nine hundred eighty-nine".