312103201213 has 2 divisors, whose sum is σ = 312103201214. Its totient is φ = 312103201212.

The previous prime is 312103201171. The next prime is 312103201219. The reversal of 312103201213 is 312102301213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 295791313689 + 16311887524 = 543867^2 + 127718^2 .

It is a cyclic number.

It is not a de Polignac number, because 312103201213 - 2³³ = 303513266621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312103201219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156051600606 + 156051600607.

It is an arithmetic number, because the mean of its divisors is an integer number (156051600607).

Almost surely, 2^312103201213 is an apocalyptic number.

It is an amenable number.

312103201213 is a deficient number, since it is larger than the sum of its proper divisors (1).

312103201213 is an equidigital number, since it uses as much as digits as its factorization.

312103201213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312103201213 its reverse (312102301213), we get a palindrome (624205502426).

The spelling of 312103201213 in words is "three hundred twelve billion, one hundred three million, two hundred one thousand, two hundred thirteen".