31024239985 has 8 divisors (see below), whose sum is σ = 38430026496. Its totient is φ = 24018766320.

The previous prime is 31024239971. The next prime is 31024240019. The reversal of 31024239985 is 58993242013.

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

It is not a de Polignac number, because 31024239985 - 2⁹ = 31024239473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100078039 + ... + 100078348.

It is an arithmetic number, because the mean of its divisors is an integer number (4803753312).

Almost surely, 2^31024239985 is an apocalyptic number.

It is an amenable number.

31024239985 is a deficient number, since it is larger than the sum of its proper divisors (7405786511).

31024239985 is a wasteful number, since it uses less digits than its factorization.

31024239985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200156423.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 31024239985 in words is "thirty-one billion, twenty-four million, two hundred thirty-nine thousand, nine hundred eighty-five".