12315212152 has 32 divisors (see below), whose sum is σ = 23911120800. Its totient is φ = 5939337600.

The previous prime is 12315212141. The next prime is 12315212167. The reversal of 12315212152 is 25121251321.

It is a happy number.

It is a super-3 number, since 3×12315212152³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210877 + ... + 262867.

It is an arithmetic number, because the mean of its divisors is an integer number (747222525).

Almost surely, 2^12315212152 is an apocalyptic number.

It is an amenable number.

12315212152 is a deficient number, since it is larger than the sum of its proper divisors (11595908648).

12315212152 is a wasteful number, since it uses less digits than its factorization.

12315212152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53047 (or 53043 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

Adding to 12315212152 its reverse (25121251321), we get a palindrome (37436463473).

The spelling of 12315212152 in words is "twelve billion, three hundred fifteen million, two hundred twelve thousand, one hundred fifty-two".