31043022009 has 8 divisors (see below), whose sum is σ = 41392701792. Its totient is φ = 20694345120.

The previous prime is 31043021993. The next prime is 31043022013. The reversal of 31043022009 is 90022034013.

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

It is not a de Polignac number, because 31043022009 - 2⁴ = 31043021993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31043022009.

It is not an unprimeable number, because it can be changed into a prime (31043022509) 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, 175252 + ... + 304629.

It is an arithmetic number, because the mean of its divisors is an integer number (5174087724).

Almost surely, 2^31043022009 is an apocalyptic number.

It is an amenable number.

31043022009 is a deficient number, since it is larger than the sum of its proper divisors (10349679783).

31043022009 is a wasteful number, since it uses less digits than its factorization.

31043022009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501447.

The product of its (nonzero) digits is 1296, while the sum is 24.

The spelling of 31043022009 in words is "thirty-one billion, forty-three million, twenty-two thousand, nine".