312201222023 has 4 divisors (see below), whose sum is σ = 314447274120. Its totient is φ = 309955169928.

The previous prime is 312201222001. The next prime is 312201222043. The reversal of 312201222023 is 320222102213.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312201222023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312201221986 and 312201222004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312201222043) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1123025840 + ... + 1123026117.

It is an arithmetic number, because the mean of its divisors is an integer number (78611818530).

Almost surely, 2^312201222023 is an apocalyptic number.

312201222023 is a deficient number, since it is larger than the sum of its proper divisors (2246052097).

312201222023 is a wasteful number, since it uses less digits than its factorization.

312201222023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246052096.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 312201222023 its reverse (320222102213), we get a palindrome (632423324236).

The spelling of 312201222023 in words is "three hundred twelve billion, two hundred one million, two hundred twenty-two thousand, twenty-three".