312440020223 has 16 divisors (see below), whose sum is σ = 334093654944. Its totient is φ = 291153269760.

The previous prime is 312440020181. The next prime is 312440020241. The reversal of 312440020223 is 322020044213.

It is a cyclic number.

It is not a de Polignac number, because 312440020223 - 2⁶ = 312440020159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312440020283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3339011 + ... + 3431307.

It is an arithmetic number, because the mean of its divisors is an integer number (20880853434).

Almost surely, 2^312440020223 is an apocalyptic number.

312440020223 is a deficient number, since it is larger than the sum of its proper divisors (21653634721).

312440020223 is a wasteful number, since it uses less digits than its factorization.

312440020223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94282.

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

Adding to 312440020223 its reverse (322020044213), we get a palindrome (634460064436).

The spelling of 312440020223 in words is "three hundred twelve billion, four hundred forty million, twenty thousand, two hundred twenty-three".