16011131 has 2 divisors, whose sum is σ = 16011132. Its totient is φ = 16011130.

The previous prime is 16011113. The next prime is 16011133. The reversal of 16011131 is 13111061.

Together with previous prime (16011113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16011131 is a prime.

It is a super-2 number, since 2×16011131² = 512712631798322, which contains 22 as substring.

Together with 16011133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16011133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8005565 + 8005566.

It is an arithmetic number, because the mean of its divisors is an integer number (8005566).

Almost surely, 2^16011131 is an apocalyptic number.

16011131 is a deficient number, since it is larger than the sum of its proper divisors (1).

16011131 is an equidigital number, since it uses as much as digits as its factorization.

16011131 is an evil number, because the sum of its binary digits is even.

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

The square root of 16011131 is about 4001.3911330936. The cubic root of 16011131 is about 252.0426305219.

Adding to 16011131 its reverse (13111061), we get a palindrome (29122192).

The spelling of 16011131 in words is "sixteen million, eleven thousand, one hundred thirty-one".