312211322203 has 8 divisors (see below), whose sum is σ = 340646897520. Its totient is φ = 283784534880.

The previous prime is 312211322197. The next prime is 312211322209. The reversal of 312211322203 is 302223112213.

It is an interprime number because it is at equal distance from previous prime (312211322197) and next prime (312211322209).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312211322203 - 2²¹ = 312209225051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312211322209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2122600 + ... + 2264917.

It is an arithmetic number, because the mean of its divisors is an integer number (42580862190).

Almost surely, 2^312211322203 is an apocalyptic number.

312211322203 is a deficient number, since it is larger than the sum of its proper divisors (28435575317).

312211322203 is a wasteful number, since it uses less digits than its factorization.

312211322203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393997.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 312211322203 its reverse (302223112213), we get a palindrome (614434434416).

The spelling of 312211322203 in words is "three hundred twelve billion, two hundred eleven million, three hundred twenty-two thousand, two hundred three".