312223343112231 has 16 divisors (see below), whose sum is σ = 427550813887584. Its totient is φ = 202522429436544.

The previous prime is 312223343112221. The next prime is 312223343112283. The reversal of 312223343112231 is 132211343322213.

It is not a de Polignac number, because 312223343112231 - 2¹¹ = 312223343110183 is a prime.

It is a super-2 number, since 2×312223343112231² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312223343112192 and 312223343112201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312223343112221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22461945 + ... + 33600381.

It is an arithmetic number, because the mean of its divisors is an integer number (26721925867974).

Almost surely, 2^{312223343112231} is an apocalyptic number.

312223343112231 is a deficient number, since it is larger than the sum of its proper divisors (115327470775353).

312223343112231 is a wasteful number, since it uses less digits than its factorization.

312223343112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11391010.

The product of its digits is 31104, while the sum is 33.

Adding to 312223343112231 its reverse (132211343322213), we get a palindrome (444434686434444).

The spelling of 312223343112231 in words is "three hundred twelve trillion, two hundred twenty-three billion, three hundred forty-three million, one hundred twelve thousand, two hundred thirty-one".