10120020985 has 8 divisors (see below), whose sum is σ = 12145231296. Its totient is φ = 8095212720.

The previous prime is 10120020983. The next prime is 10120020991. The reversal of 10120020985 is 58902002101.

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

It is not a de Polignac number, because 10120020985 - 2¹ = 10120020983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10120020983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42039 + ... + 148348.

It is an arithmetic number, because the mean of its divisors is an integer number (1518153912).

Almost surely, 2^10120020985 is an apocalyptic number.

It is an amenable number.

10120020985 is a deficient number, since it is larger than the sum of its proper divisors (2025210311).

10120020985 is a wasteful number, since it uses less digits than its factorization.

10120020985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201023.

The product of its (nonzero) digits is 1440, while the sum is 28.

The spelling of 10120020985 in words is "ten billion, one hundred twenty million, twenty thousand, nine hundred eighty-five".