10031109985 has 32 divisors (see below), whose sum is σ = 13138568352. Its totient is φ = 7307919360.

The previous prime is 10031109973. The next prime is 10031110039. The reversal of 10031109985 is 58990113001.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 5000186944 + 5030923041 = 70712^2 + 70929^2 .

It is not a de Polignac number, because 10031109985 - 2⁷ = 10031109857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2122425 + ... + 2127145.

It is an arithmetic number, because the mean of its divisors is an integer number (410580261).

Almost surely, 2^10031109985 is an apocalyptic number.

It is an amenable number.

10031109985 is a deficient number, since it is larger than the sum of its proper divisors (3107458367).

10031109985 is a wasteful number, since it uses less digits than its factorization.

10031109985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173.

The product of its (nonzero) digits is 9720, while the sum is 37.

The spelling of 10031109985 in words is "ten billion, thirty-one million, one hundred nine thousand, nine hundred eighty-five".