312223333129 has 2 divisors, whose sum is σ = 312223333130. Its totient is φ = 312223333128.

The previous prime is 312223333087. The next prime is 312223333187. The reversal of 312223333129 is 921333322213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 257579595529 + 54643737600 = 507523^2 + 233760^2 .

It is a cyclic number.

It is not a de Polignac number, because 312223333129 - 2¹³ = 312223324937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312223333094 and 312223333103.

It is not a weakly prime, because it can be changed into another prime (312223433129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156111666564 + 156111666565.

It is an arithmetic number, because the mean of its divisors is an integer number (156111666565).

Almost surely, 2^312223333129 is an apocalyptic number.

It is an amenable number.

312223333129 is a deficient number, since it is larger than the sum of its proper divisors (1).

312223333129 is an equidigital number, since it uses as much as digits as its factorization.

312223333129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 34.

The spelling of 312223333129 in words is "three hundred twelve billion, two hundred twenty-three million, three hundred thirty-three thousand, one hundred twenty-nine".