312223203202311 has 12 divisors (see below), whose sum is σ = 458382334756840. Its totient is φ = 204736526689680.

The previous prime is 312223203202307. The next prime is 312223203202333. The reversal of 312223203202311 is 113202302322213.

312223203202311 is a `hidden beast` number, since 3 + 1 + 2 + 2 + 2 + 3 + 20 + 320 + 2 + 311 = 666.

It is not a de Polignac number, because 312223203202311 - 2² = 312223203202307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312223203202511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284356286521 + ... + 284356287618.

Almost surely, 2^{312223203202311} is an apocalyptic number.

312223203202311 is a deficient number, since it is larger than the sum of its proper divisors (146159131554529).

312223203202311 is a wasteful number, since it uses less digits than its factorization.

312223203202311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568712574206 (or 568712574203 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 312223203202311 its reverse (113202302322213), we get a palindrome (425425505524524).

The spelling of 312223203202311 in words is "three hundred twelve trillion, two hundred twenty-three billion, two hundred three million, two hundred two thousand, three hundred eleven".