312210123223 has 4 divisors (see below), whose sum is σ = 312278043880. Its totient is φ = 312142202568.

The previous prime is 312210123217. The next prime is 312210123259. The reversal of 312210123223 is 322321012213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322321012213 = 181 ⋅1780779073.

It is a cyclic number.

It is not a de Polignac number, because 312210123223 - 2¹⁷ = 312209992151 is a prime.

It is a super-2 number, since 2×312210123223² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312210123194 and 312210123203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312210123523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33953433 + ... + 33962626.

It is an arithmetic number, because the mean of its divisors is an integer number (78069510970).

Almost surely, 2^312210123223 is an apocalyptic number.

312210123223 is a deficient number, since it is larger than the sum of its proper divisors (67920657).

312210123223 is an equidigital number, since it uses as much as digits as its factorization.

312210123223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67920656.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 312210123223 its reverse (322321012213), we get a palindrome (634531135436).

The spelling of 312210123223 in words is "three hundred twelve billion, two hundred ten million, one hundred twenty-three thousand, two hundred twenty-three".