315421423523205 has 128 divisors (see below), whose sum is σ = 547659528929280. Its totient is φ = 154653490252800.

The previous prime is 315421423523183. The next prime is 315421423523237. The reversal of 315421423523205 is 502325324124513.

It is not a de Polignac number, because 315421423523205 - 2¹⁶ = 315421423457669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8311261980 + ... + 8311299930.

It is an arithmetic number, because the mean of its divisors is an integer number (4278590069760).

Almost surely, 2^{315421423523205} is an apocalyptic number.

It is an amenable number.

315421423523205 is a deficient number, since it is larger than the sum of its proper divisors (232238105406075).

315421423523205 is a wasteful number, since it uses less digits than its factorization.

315421423523205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49059.

The product of its (nonzero) digits is 864000, while the sum is 42.

Adding to 315421423523205 its reverse (502325324124513), we get a palindrome (817746747647718).

The spelling of 315421423523205 in words is "three hundred fifteen trillion, four hundred twenty-one billion, four hundred twenty-three million, five hundred twenty-three thousand, two hundred five".