1011000985 has 8 divisors (see below), whose sum is σ = 1252336896. Its totient is φ = 782710320.

The previous prime is 1011000983. The next prime is 1011001003. The reversal of 1011000985 is 5890001101.

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

It is not a de Polignac number, because 1011000985 - 2¹ = 1011000983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011000983) 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, 3261139 + ... + 3261448.

It is an arithmetic number, because the mean of its divisors is an integer number (156542112).

Almost surely, 2^1011000985 is an apocalyptic number.

It is an amenable number.

1011000985 is a deficient number, since it is larger than the sum of its proper divisors (241335911).

1011000985 is an equidigital number, since it uses as much as digits as its factorization.

1011000985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6522623.

The product of its (nonzero) digits is 360, while the sum is 25.

The square root of 1011000985 is about 31796.2416804251. The cubic root of 1011000985 is about 1003.6536297323.

The spelling of 1011000985 in words is "one billion, eleven million, nine hundred eighty-five", and thus it is an aban number.