312223021011 has 32 divisors (see below), whose sum is σ = 526542128640. Its totient is φ = 180998848800.

The previous prime is 312223020971. The next prime is 312223021021. The reversal of 312223021011 is 110120322213.

It is not a de Polignac number, because 312223021011 - 2⁷ = 312223020883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312223021021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22846560 + ... + 22860221.

It is an arithmetic number, because the mean of its divisors is an integer number (16454441520).

Almost surely, 2^312223021011 is an apocalyptic number.

312223021011 is a deficient number, since it is larger than the sum of its proper divisors (214319107629).

312223021011 is a wasteful number, since it uses less digits than its factorization.

312223021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45706824 (or 45706818 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 312223021011 its reverse (110120322213), we get a palindrome (422343343224).

The spelling of 312223021011 in words is "three hundred twelve billion, two hundred twenty-three million, twenty-one thousand, eleven".