312312021011223 has 32 divisors (see below), whose sum is σ = 424374733274112. Its totient is φ = 204259438387200.

The previous prime is 312312021011203. The next prime is 312312021011369. The reversal of 312312021011223 is 322110120213213.

It is not a de Polignac number, because 312312021011223 - 2³³ = 312303431076631 is a prime.

It is a super-2 number, since 2×312312021011223² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312312021011193 and 312312021011202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312312021011203) 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 31 ways as a sum of consecutive naturals, for example, 48479790 + ... + 54542772.

It is an arithmetic number, because the mean of its divisors is an integer number (13261710414816).

Almost surely, 2^{312312021011223} is an apocalyptic number.

312312021011223 is a deficient number, since it is larger than the sum of its proper divisors (112062712262889).

312312021011223 is a wasteful number, since it uses less digits than its factorization.

312312021011223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6064255.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 312312021011223 its reverse (322110120213213), we get a palindrome (634422141224436).

The spelling of 312312021011223 in words is "three hundred twelve trillion, three hundred twelve billion, twenty-one million, eleven thousand, two hundred twenty-three".