16031313 has 12 divisors (see below), whose sum is σ = 23191168. Its totient is φ = 10671480.

The previous prime is 16031297. The next prime is 16031317. The reversal of 16031313 is 31313061.

It is not a de Polignac number, because 16031313 - 2⁴ = 16031297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16031317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10356 + ... + 11802.

Almost surely, 2^16031313 is an apocalyptic number.

It is an amenable number.

16031313 is a deficient number, since it is larger than the sum of its proper divisors (7159855).

16031313 is a wasteful number, since it uses less digits than its factorization.

16031313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684 (or 2681 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 16031313 is about 4003.9122118248. The cubic root of 16031313 is about 252.1484858088.

Adding to 16031313 its reverse (31313061), we get a palindrome (47344374).

It can be divided in two parts, 1603 and 1313, that added together give a square (2916 = 54²).

The spelling of 16031313 in words is "sixteen million, thirty-one thousand, three hundred thirteen".