311223382811 has 8 divisors (see below), whose sum is σ = 339520460544. Its totient is φ = 282926978920.

The previous prime is 311223382793. The next prime is 311223382819. The reversal of 311223382811 is 118283322113.

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 311223382811 - 2¹⁴ = 311223366427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311223382819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1663346 + ... + 1840968.

It is an arithmetic number, because the mean of its divisors is an integer number (42440057568).

Almost surely, 2^311223382811 is an apocalyptic number.

311223382811 is a deficient number, since it is larger than the sum of its proper divisors (28297077733).

311223382811 is a wasteful number, since it uses less digits than its factorization.

311223382811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336921.

The product of its digits is 13824, while the sum is 35.

The spelling of 311223382811 in words is "three hundred eleven billion, two hundred twenty-three million, three hundred eighty-two thousand, eight hundred eleven".