312212311132237 has 2 divisors, whose sum is σ = 312212311132238. Its totient is φ = 312212311132236.

The previous prime is 312212311132229. The next prime is 312212311132247. The reversal of 312212311132237 is 732231113212213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308888147145796 + 3324163986441 = 17575214^2 + 1823229^2 .

It is an emirp because it is prime and its reverse (732231113212213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312212311132237 - 2³ = 312212311132229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312212311132247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156106155566118 + 156106155566119.

It is an arithmetic number, because the mean of its divisors is an integer number (156106155566119).

Almost surely, 2^{312212311132237} is an apocalyptic number.

It is an amenable number.

312212311132237 is a deficient number, since it is larger than the sum of its proper divisors (1).

312212311132237 is an equidigital number, since it uses as much as digits as its factorization.

312212311132237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The spelling of 312212311132237 in words is "three hundred twelve trillion, two hundred twelve billion, three hundred eleven million, one hundred thirty-two thousand, two hundred thirty-seven".