31110220013 has 8 divisors (see below), whose sum is σ = 31416610368. Its totient is φ = 30803913504.

The previous prime is 31110219991. The next prime is 31110220021. The reversal of 31110220013 is 31002201113.

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 31110220013 - 2¹⁶ = 31110154477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31110220013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31110220073) 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, 939881 + ... + 972417.

It is an arithmetic number, because the mean of its divisors is an integer number (3927076296).

Almost surely, 2^31110220013 is an apocalyptic number.

It is an amenable number.

31110220013 is a deficient number, since it is larger than the sum of its proper divisors (306390355).

31110220013 is a wasteful number, since it uses less digits than its factorization.

31110220013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41923.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 31110220013 its reverse (31002201113), we get a palindrome (62112421126).

The spelling of 31110220013 in words is "thirty-one billion, one hundred ten million, two hundred twenty thousand, thirteen".