312220122303 has 4 divisors (see below), whose sum is σ = 416293496408. Its totient is φ = 208146748200.

The previous prime is 312220122293. The next prime is 312220122317. The reversal of 312220122303 is 303221022213.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303221022213 = 3 ⋅101073674071.

It is not a de Polignac number, because 312220122303 - 2⁴ = 312220122287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312220122303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312220122373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52036687048 + ... + 52036687053.

It is an arithmetic number, because the mean of its divisors is an integer number (104073374102).

Almost surely, 2^312220122303 is an apocalyptic number.

312220122303 is a deficient number, since it is larger than the sum of its proper divisors (104073374105).

312220122303 is a wasteful number, since it uses less digits than its factorization.

312220122303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104073374104.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 312220122303 its reverse (303221022213), we get a palindrome (615441144516).

The spelling of 312220122303 in words is "three hundred twelve billion, two hundred twenty million, one hundred twenty-two thousand, three hundred three".