315532334321 has 2 divisors, whose sum is σ = 315532334322. Its totient is φ = 315532334320.

The previous prime is 315532334281. The next prime is 315532334323. The reversal of 315532334321 is 123433235513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200296527025 + 115235807296 = 447545^2 + 339464^2 .

It is a cyclic number.

It is not a de Polignac number, because 315532334321 - 2¹⁰ = 315532333297 is a prime.

Together with 315532334323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (315532334323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157766167160 + 157766167161.

It is an arithmetic number, because the mean of its divisors is an integer number (157766167161).

Almost surely, 2^315532334321 is an apocalyptic number.

It is an amenable number.

315532334321 is a deficient number, since it is larger than the sum of its proper divisors (1).

315532334321 is an equidigital number, since it uses as much as digits as its factorization.

315532334321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 35.

Adding to 315532334321 its reverse (123433235513), we get a palindrome (438965569834).

The spelling of 315532334321 in words is "three hundred fifteen billion, five hundred thirty-two million, three hundred thirty-four thousand, three hundred twenty-one".