12315142112 has 48 divisors (see below), whose sum is σ = 29840543712. Its totient is φ = 4871923200.

The previous prime is 12315142111. The next prime is 12315142127. The reversal of 12315142112 is 21124151321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12315142111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2111639 + ... + 2117462.

It is an arithmetic number, because the mean of its divisors is an integer number (621677994).

Almost surely, 2^12315142112 is an apocalyptic number.

It is an amenable number.

12315142112 is an abundant number, since it is smaller than the sum of its proper divisors (17525401600).

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

12315142112 is a wasteful number, since it uses less digits than its factorization.

12315142112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4229131 (or 4229123 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

Adding to 12315142112 its reverse (21124151321), we get a palindrome (33439293433).

The spelling of 12315142112 in words is "twelve billion, three hundred fifteen million, one hundred forty-two thousand, one hundred twelve".