16231311 has 12 divisors (see below), whose sum is σ = 24824592. Its totient is φ = 10184256.

The previous prime is 16231297. The next prime is 16231333. The reversal of 16231311 is 11313261.

It is not a de Polignac number, because 16231311 - 2⁵ = 16231279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16231361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52891 + ... + 53196.

It is an arithmetic number, because the mean of its divisors is an integer number (2068716).

Almost surely, 2^16231311 is an apocalyptic number.

16231311 is a deficient number, since it is larger than the sum of its proper divisors (8593281).

16231311 is a wasteful number, since it uses less digits than its factorization.

16231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106110 (or 106107 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 16231311 is about 4028.8101221080. The cubic root of 16231311 is about 253.1927114693.

Adding to 16231311 its reverse (11313261), we get a palindrome (27544572).

The spelling of 16231311 in words is "sixteen million, two hundred thirty-one thousand, three hundred eleven".