312220242203 has 4 divisors (see below), whose sum is σ = 312224707080. Its totient is φ = 312215777328.

The previous prime is 312220242181. The next prime is 312220242241. The reversal of 312220242203 is 302242022213.

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

It is a cyclic number.

It is not a de Polignac number, because 312220242203 - 2²⁴ = 312203464987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312220242293) 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, 2125850 + ... + 2267967.

It is an arithmetic number, because the mean of its divisors is an integer number (78056176770).

Almost surely, 2^312220242203 is an apocalyptic number.

312220242203 is a deficient number, since it is larger than the sum of its proper divisors (4464877).

312220242203 is an equidigital number, since it uses as much as digits as its factorization.

312220242203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4464876.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 312220242203 its reverse (302242022213), we get a palindrome (614462264416).

The spelling of 312220242203 in words is "three hundred twelve billion, two hundred twenty million, two hundred forty-two thousand, two hundred three".