16331113 has 4 divisors (see below), whose sum is σ = 16347460. Its totient is φ = 16314768.

The previous prime is 16331111. The next prime is 16331123. The reversal of 16331113 is 31113361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31113361 = 3181 ⋅9781.

It can be written as a sum of positive squares in 2 ways, for example, as 4032064 + 12299049 = 2008^2 + 3507^2 .

It is a cyclic number.

It is not a de Polignac number, because 16331113 - 2¹ = 16331111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16331111) 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 3 ways as a sum of consecutive naturals, for example, 6570 + ... + 8707.

It is an arithmetic number, because the mean of its divisors is an integer number (4086865).

Almost surely, 2^16331113 is an apocalyptic number.

It is an amenable number.

16331113 is a deficient number, since it is larger than the sum of its proper divisors (16347).

16331113 is a wasteful number, since it uses less digits than its factorization.

16331113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16346.

The product of its digits is 162, while the sum is 19.

The square root of 16331113 is about 4041.1771799811. The cubic root of 16331113 is about 253.7105896231.

Adding to 16331113 its reverse (31113361), we get a palindrome (47444474).

The spelling of 16331113 in words is "sixteen million, three hundred thirty-one thousand, one hundred thirteen".