16123316311 has 4 divisors (see below), whose sum is σ = 16123618624. Its totient is φ = 16123014000.

The previous prime is 16123316299. The next prime is 16123316317. The reversal of 16123316311 is 11361332161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16123316311 - 2²¹ = 16121219159 is a prime.

It is a super-2 number, since 2×16123316311² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16123316311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16123316317) 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, 47430 + ... + 185731.

It is an arithmetic number, because the mean of its divisors is an integer number (4030904656).

Almost surely, 2^16123316311 is an apocalyptic number.

16123316311 is a deficient number, since it is larger than the sum of its proper divisors (302313).

16123316311 is an equidigital number, since it uses as much as digits as its factorization.

16123316311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302312.

The product of its digits is 1944, while the sum is 28.

Adding to 16123316311 its reverse (11361332161), we get a palindrome (27484648472).

The spelling of 16123316311 in words is "sixteen billion, one hundred twenty-three million, three hundred sixteen thousand, three hundred eleven".