3113013221 has 4 divisors (see below), whose sum is σ = 3114700512. Its totient is φ = 3111325932.

The previous prime is 3113013217. The next prime is 3113013229. The reversal of 3113013221 is 1223103113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1223103113 = 6703 ⋅182471.

It is a cyclic number.

It is not a de Polignac number, because 3113013221 - 2² = 3113013217 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 3113013221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3113013229) by changing a digit.

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, 840875 + ... + 844568.

It is an arithmetic number, because the mean of its divisors is an integer number (778675128).

Almost surely, 2^3113013221 is an apocalyptic number.

It is an amenable number.

3113013221 is a deficient number, since it is larger than the sum of its proper divisors (1687291).

3113013221 is a wasteful number, since it uses less digits than its factorization.

3113013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687290.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3113013221 is about 55794.3834180467. The cubic root of 3113013221 is about 1460.1371643510.

Adding to 3113013221 its reverse (1223103113), we get a palindrome (4336116334).

The spelling of 3113013221 in words is "three billion, one hundred thirteen million, thirteen thousand, two hundred twenty-one".