16131423331 has 8 divisors (see below), whose sum is σ = 16498520064. Its totient is φ = 15765321480.

The previous prime is 16131423317. The next prime is 16131423337. The reversal of 16131423331 is 13332413161.

16131423331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16131423331 - 2⁹ = 16131422819 is a prime.

It is a super-2 number, since 2×16131423331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 16131423331.

It is not an unprimeable number, because it can be changed into a prime (16131423337) 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 7 ways as a sum of consecutive naturals, for example, 215875 + ... + 280828.

It is an arithmetic number, because the mean of its divisors is an integer number (2062315008).

Almost surely, 2^16131423331 is an apocalyptic number.

16131423331 is a deficient number, since it is larger than the sum of its proper divisors (367096733).

16131423331 is an equidigital number, since it uses as much as digits as its factorization.

16131423331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497441.

The product of its digits is 3888, while the sum is 28.

Adding to 16131423331 its reverse (13332413161), we get a palindrome (29463836492).

The spelling of 16131423331 in words is "sixteen billion, one hundred thirty-one million, four hundred twenty-three thousand, three hundred thirty-one".