16111013 has 4 divisors (see below), whose sum is σ = 16119840. Its totient is φ = 16102188.

The previous prime is 16111003. The next prime is 16111057. The reversal of 16111013 is 31011161.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16111013 - 2⁶ = 16110949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16111003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545 + ... + 5702.

It is an arithmetic number, because the mean of its divisors is an integer number (4029960).

Almost surely, 2^16111013 is an apocalyptic number.

It is an amenable number.

16111013 is a deficient number, since it is larger than the sum of its proper divisors (8827).

16111013 is an equidigital number, since it uses as much as digits as its factorization.

16111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8826.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 16111013 is about 4013.8526380524. The cubic root of 16111013 is about 252.5656490412.

Adding to 16111013 its reverse (31011161), we get a palindrome (47122174).

The spelling of 16111013 in words is "sixteen million, one hundred eleven thousand, thirteen".