1816712311 has 2 divisors, whose sum is σ = 1816712312. Its totient is φ = 1816712310.

The previous prime is 1816712299. The next prime is 1816712371. The reversal of 1816712311 is 1132176181.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1132176181) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1816712311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1816712371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 908356155 + 908356156.

It is an arithmetic number, because the mean of its divisors is an integer number (908356156).

Almost surely, 2^1816712311 is an apocalyptic number.

1816712311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1816712311 is an equidigital number, since it uses as much as digits as its factorization.

1816712311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 31.

The square root of 1816712311 is about 42622.9082888533. The cubic root of 1816712311 is about 1220.1935353185.

Adding to 1816712311 its reverse (1132176181), we get a palindrome (2948888492).

The spelling of 1816712311 in words is "one billion, eight hundred sixteen million, seven hundred twelve thousand, three hundred eleven".