312110311273 has 2 divisors, whose sum is σ = 312110311274. Its totient is φ = 312110311272.

The previous prime is 312110311243. The next prime is 312110311321. The reversal of 312110311273 is 372113011213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302980890969 + 9129420304 = 550437^2 + 95548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312110311273 is a prime.

It is not a weakly prime, because it can be changed into another prime (312110311243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156055155636 + 156055155637.

It is an arithmetic number, because the mean of its divisors is an integer number (156055155637).

Almost surely, 2^312110311273 is an apocalyptic number.

It is an amenable number.

312110311273 is a deficient number, since it is larger than the sum of its proper divisors (1).

312110311273 is an equidigital number, since it uses as much as digits as its factorization.

312110311273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

Adding to 312110311273 its reverse (372113011213), we get a palindrome (684223322486).

The spelling of 312110311273 in words is "three hundred twelve billion, one hundred ten million, three hundred eleven thousand, two hundred seventy-three".