315520503012 has 288 divisors, whose sum is σ = 973792520064. Its totient is φ = 88067865600.

The previous prime is 315520503007. The next prime is 315520503041. The reversal of 315520503012 is 210305025513.

It is a happy number.

315520503012 is a `hidden beast` number, since 3 + 155 + 2 + 0 + 503 + 0 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 72414738 + ... + 72419094.

It is an arithmetic number, because the mean of its divisors is an integer number (3381224028).

Almost surely, 2^315520503012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315520503012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486896260032).

315520503012 is an abundant number, since it is smaller than the sum of its proper divisors (658272017052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315520503012 is a wasteful number, since it uses less digits than its factorization.

315520503012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4921 (or 4907 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

Adding to 315520503012 its reverse (210305025513), we get a palindrome (525825528525).

The spelling of 315520503012 in words is "three hundred fifteen billion, five hundred twenty million, five hundred three thousand, twelve".