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BaseRepresentation
bin1011111000000010101011
312212011102011
423320002223
51244110011
6150420351
735314120
oct13700253
95764364
103113131
111836a3a
1210616b7
1384ccb8
145b0747
15417621
hex2f80ab

3113131 has 16 divisors (see below), whose sum is σ = 3801600. Its totient is φ = 2490048.

The previous prime is 3113129. The next prime is 3113147. The reversal of 3113131 is 1313113.

It is a happy number.

3113131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3113131 - 21 = 3113129 is a prime.

It is a super-2 number, since 2×31131312 = 19383169246322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3113101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11706 + ... + 11968.

It is an arithmetic number, because the mean of its divisors is an integer number (237600).

Almost surely, 23113131 is an apocalyptic number.

3113131 is a deficient number, since it is larger than the sum of its proper divisors (688469).

3113131 is a wasteful number, since it uses less digits than its factorization.

3113131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378.

The product of its digits is 27, while the sum is 13.

The square root of 3113131 is about 1764.4066991485. The cubic root of 3113131 is about 146.0155578592.

Adding to 3113131 its reverse (1313113), we get a palindrome (4426244).

The spelling of 3113131 in words is "three million, one hundred thirteen thousand, one hundred thirty-one".