315221030425 has 12 divisors (see below), whose sum is σ = 446713231936. Its totient is φ = 216151563600.

The previous prime is 315221030381. The next prime is 315221030461. The reversal of 315221030425 is 524030122513.

It is not a de Polignac number, because 315221030425 - 2⁷ = 315221030297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315221030393 and 315221030402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 900631341 + ... + 900631690.

Almost surely, 2^315221030425 is an apocalyptic number.

315221030425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

315221030425 is a deficient number, since it is larger than the sum of its proper divisors (131492201511).

315221030425 is a wasteful number, since it uses less digits than its factorization.

315221030425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801263048 (or 1801263043 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 315221030425 its reverse (524030122513), we get a palindrome (839251152938).

The spelling of 315221030425 in words is "three hundred fifteen billion, two hundred twenty-one million, thirty thousand, four hundred twenty-five".