31320044011 has 8 divisors (see below), whose sum is σ = 32970406400. Its totient is φ = 29669875560.

The previous prime is 31320043939. The next prime is 31320044017. The reversal of 31320044011 is 11044002313.

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 31320044011 - 2²⁵ = 31286489579 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 31320044011.

It is not an unprimeable number, because it can be changed into a prime (31320044017) 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, 380350 + ... + 455308.

It is an arithmetic number, because the mean of its divisors is an integer number (4121300800).

Almost surely, 2^31320044011 is an apocalyptic number.

31320044011 is a deficient number, since it is larger than the sum of its proper divisors (1650362389).

31320044011 is a wasteful number, since it uses less digits than its factorization.

31320044011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96969.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31320044011 its reverse (11044002313), we get a palindrome (42364046324).

The spelling of 31320044011 in words is "thirty-one billion, three hundred twenty million, forty-four thousand, eleven".