10101020985 has 48 divisors (see below), whose sum is σ = 20223665280. Its totient is φ = 4609374720.

The previous prime is 10101020983. The next prime is 10101020987. The reversal of 10101020985 is 58902010101.

It is an interprime number because it is at equal distance from previous prime (10101020983) and next prime (10101020987).

It is not a de Polignac number, because 10101020985 - 2¹ = 10101020983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10101020981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 591765 + ... + 608594.

It is an arithmetic number, because the mean of its divisors is an integer number (421326360).

Almost surely, 2^10101020985 is an apocalyptic number.

10101020985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10101020985 is an abundant number, since it is smaller than the sum of its proper divisors (10122644295).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10101020985 is a wasteful number, since it uses less digits than its factorization.

10101020985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200398 (or 1200395 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The spelling of 10101020985 in words is "ten billion, one hundred one million, twenty thousand, nine hundred eighty-five".