316333432222261 has 2 divisors, whose sum is σ = 316333432222262. Its totient is φ = 316333432222260.

The previous prime is 316333432222253. The next prime is 316333432222271. The reversal of 316333432222261 is 162222234333613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 284174665665361 + 32158766556900 = 16857481^2 + 5670870^2 .

It is an emirp because it is prime and its reverse (162222234333613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316333432222261 - 2³ = 316333432222253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316333432222271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158166716111130 + 158166716111131.

It is an arithmetic number, because the mean of its divisors is an integer number (158166716111131).

Almost surely, 2^{316333432222261} is an apocalyptic number.

It is an amenable number.

316333432222261 is a deficient number, since it is larger than the sum of its proper divisors (1).

316333432222261 is an equidigital number, since it uses as much as digits as its factorization.

316333432222261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 43.

Adding to 316333432222261 its reverse (162222234333613), we get a palindrome (478555666555874).

The spelling of 316333432222261 in words is "three hundred sixteen trillion, three hundred thirty-three billion, four hundred thirty-two million, two hundred twenty-two thousand, two hundred sixty-one".