311230012322 has 4 divisors (see below), whose sum is σ = 466845018486. Its totient is φ = 155615006160.

The previous prime is 311230012307. The next prime is 311230012349. The reversal of 311230012322 is 223210032113.

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

It can be written as a sum of positive squares in only one way, i.e., 291598920001 + 19631092321 = 539999^2 + 140111^2 .

It is a junction number, because it is equal to n+sod(n) for n = 311230012294 and 311230012303.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 77807503079 + ... + 77807503082.

Almost surely, 2^311230012322 is an apocalyptic number.

311230012322 is a deficient number, since it is larger than the sum of its proper divisors (155615006164).

311230012322 is a wasteful number, since it uses less digits than its factorization.

311230012322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155615006163.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 311230012322 its reverse (223210032113), we get a palindrome (534440044435).

The spelling of 311230012322 in words is "three hundred eleven billion, two hundred thirty million, twelve thousand, three hundred twenty-two".