315144305225212 has 12 divisors (see below), whose sum is σ = 551503283259096. Its totient is φ = 157571938579760.

The previous prime is 315144305225209. The next prime is 315144305225219. The reversal of 315144305225212 is 212522503441513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315144305225219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50172178 + ... + 56102905.

It is an arithmetic number, because the mean of its divisors is an integer number (45958606938258).

Almost surely, 2^{315144305225212} is an apocalyptic number.

It is an amenable number.

315144305225212 is a deficient number, since it is larger than the sum of its proper divisors (236358978033884).

315144305225212 is a wasteful number, since it uses less digits than its factorization.

315144305225212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107016428 (or 107016426 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

Adding to 315144305225212 its reverse (212522503441513), we get a palindrome (527666808666725).

The spelling of 315144305225212 in words is "three hundred fifteen trillion, one hundred forty-four billion, three hundred five million, two hundred twenty-five thousand, two hundred twelve".