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3113003221 = 257101911887

3113003221 has 8 divisors (see below), whose sum is σ = 3128446080. Its totient is φ = 3097586688.

The previous prime is 3113003209. The next prime is 3113003233. The reversal of 3113003221 is 1223003113.

3113003221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3113003209) and next prime (3113003233).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3113003221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3113003195 and 3113003204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3113003821) 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, 255940 + ... + 267826.

It is an arithmetic number, because the mean of its divisors is an integer number (391055760).

Almost surely, 23113003221 is an apocalyptic number.

It is an amenable number.

3113003221 is a deficient number, since it is larger than the sum of its proper divisors (15442859).

3113003221 is a wasteful number, since it uses less digits than its factorization.

3113003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13163.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 3113003221 is about 55794.2938032197. The cubic root of 3113003221 is about 1460.1356008726.

Subtracting from 3113003221 its product of nonzero digits (108), we obtain a palindrome (3113003113).

Adding to 3113003221 its reverse (1223003113), we get a palindrome (4336006334).

The spelling of 3113003221 in words is "three billion, one hundred thirteen million, three thousand, two hundred twenty-one".

Divisors: 1 257 1019 11887 261883 3054959 12112853 3113003221