312111102322 has 4 divisors (see below), whose sum is σ = 468166653486. Its totient is φ = 156055551160.

The previous prime is 312111102257. The next prime is 312111102323. The reversal of 312111102322 is 223201111213.

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., 232294116961 + 79816985361 = 481969^2 + 282519^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 312111102322.

It is not an unprimeable number, because it can be changed into a prime (312111102323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78027775579 + ... + 78027775582.

Almost surely, 2^312111102322 is an apocalyptic number.

312111102322 is a deficient number, since it is larger than the sum of its proper divisors (156055551164).

312111102322 is a wasteful number, since it uses less digits than its factorization.

312111102322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156055551163.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 312111102322 its reverse (223201111213), we get a palindrome (535312213535).

The spelling of 312111102322 in words is "three hundred twelve billion, one hundred eleven million, one hundred two thousand, three hundred twenty-two".