31040440022 has 8 divisors (see below), whose sum is σ = 46628043672. Its totient is φ = 15497758800.

The previous prime is 31040440019. The next prime is 31040440031. The reversal of 31040440022 is 22004404013.

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

It is a junction number, because it is equal to n+sod(n) for n = 31040439976 and 31040440003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11228879 + ... + 11231642.

It is an arithmetic number, because the mean of its divisors is an integer number (5828505459).

Almost surely, 2^31040440022 is an apocalyptic number.

31040440022 is a deficient number, since it is larger than the sum of its proper divisors (15587603650).

31040440022 is a wasteful number, since it uses less digits than its factorization.

31040440022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22461214.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 31040440022 its reverse (22004404013), we get a palindrome (53044844035).

The spelling of 31040440022 in words is "thirty-one billion, forty million, four hundred forty thousand, twenty-two".