315431233241 has 2 divisors, whose sum is σ = 315431233242. Its totient is φ = 315431233240.

The previous prime is 315431233223. The next prime is 315431233297. The reversal of 315431233241 is 142332134513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313931607616 + 1499625625 = 560296^2 + 38725^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315431233241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315431233198 and 315431233207.

It is not a weakly prime, because it can be changed into another prime (315431233211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157715616620 + 157715616621.

It is an arithmetic number, because the mean of its divisors is an integer number (157715616621).

Almost surely, 2^315431233241 is an apocalyptic number.

It is an amenable number.

315431233241 is a deficient number, since it is larger than the sum of its proper divisors (1).

315431233241 is an equidigital number, since it uses as much as digits as its factorization.

315431233241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 32.

Adding to 315431233241 its reverse (142332134513), we get a palindrome (457763367754).

The spelling of 315431233241 in words is "three hundred fifteen billion, four hundred thirty-one million, two hundred thirty-three thousand, two hundred forty-one".