31015440422009 has 8 divisors (see below), whose sum is σ = 31444604496000. Its totient is φ = 30587190437232.

The previous prime is 31015440421991. The next prime is 31015440422047. The reversal of 31015440422009 is 90022404451013.

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

It is a cyclic number.

It is not a de Polignac number, because 31015440422009 - 2⁸ = 31015440421753 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31015440422009.

It is not an unprimeable number, because it can be changed into a prime (31015440428009) 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, 228453974 + ... + 228589695.

It is an arithmetic number, because the mean of its divisors is an integer number (3930575562000).

Almost surely, 2^{31015440422009} is an apocalyptic number.

It is an amenable number.

31015440422009 is a deficient number, since it is larger than the sum of its proper divisors (429164073991).

31015440422009 is an equidigital number, since it uses as much as digits as its factorization.

31015440422009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457044607.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 31015440422009 in words is "thirty-one trillion, fifteen billion, four hundred forty million, four hundred twenty-two thousand, nine".