315631563103 has 2 divisors, whose sum is σ = 315631563104. Its totient is φ = 315631563102.

The previous prime is 315631563047. The next prime is 315631563109. The reversal of 315631563103 is 301365136513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315631563103 - 2¹³ = 315631554911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315631563109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157815781551 + 157815781552.

It is an arithmetic number, because the mean of its divisors is an integer number (157815781552).

Almost surely, 2^315631563103 is an apocalyptic number.

315631563103 is a deficient number, since it is larger than the sum of its proper divisors (1).

315631563103 is an equidigital number, since it uses as much as digits as its factorization.

315631563103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72900, while the sum is 37.

Adding to 315631563103 its reverse (301365136513), we get a palindrome (616996699616).

The spelling of 315631563103 in words is "three hundred fifteen billion, six hundred thirty-one million, five hundred sixty-three thousand, one hundred three".