3111220040 has 32 divisors (see below), whose sum is σ = 7104732480. Its totient is φ = 1225912512.

The previous prime is 3111220019. The next prime is 3111220067. The reversal of 3111220040 is 400221113.

3111220040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3111219997 and 3111220024.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577772 + ... + 583131.

It is an arithmetic number, because the mean of its divisors is an integer number (222022890).

Almost surely, 2^3111220040 is an apocalyptic number.

It is an amenable number.

3111220040 is an abundant number, since it is smaller than the sum of its proper divisors (3993512440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3111220040 is a wasteful number, since it uses less digits than its factorization.

3111220040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160981 (or 1160977 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 3111220040 is about 55778.3115556575. The cubic root of 3111220040 is about 1459.8567508169.

Adding to 3111220040 its reverse (400221113), we get a palindrome (3511441153).

The spelling of 3111220040 in words is "three billion, one hundred eleven million, two hundred twenty thousand, forty".