312102203030213 has 2 divisors, whose sum is σ = 312102203030214. Its totient is φ = 312102203030212.

The previous prime is 312102203030207. The next prime is 312102203030251. The reversal of 312102203030213 is 312030302201213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 266550259418689 + 45551943611524 = 16326367^2 + 6749218^2 .

It is an emirp because it is prime and its reverse (312030302201213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312102203030213 - 2⁴⁰ = 311002691402437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312102203030713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156051101515106 + 156051101515107.

It is an arithmetic number, because the mean of its divisors is an integer number (156051101515107).

Almost surely, 2^{312102203030213} is an apocalyptic number.

It is an amenable number.

312102203030213 is a deficient number, since it is larger than the sum of its proper divisors (1).

312102203030213 is an equidigital number, since it uses as much as digits as its factorization.

312102203030213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 312102203030213 its reverse (312030302201213), we get a palindrome (624132505231426).

The spelling of 312102203030213 in words is "three hundred twelve trillion, one hundred two billion, two hundred three million, thirty thousand, two hundred thirteen".