12315140324 has 6 divisors (see below), whose sum is σ = 21551495574. Its totient is φ = 6157570160.

The previous prime is 12315140311. The next prime is 12315140329. The reversal of 12315140324 is 42304151321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9676263424 + 2638876900 = 98368^2 + 51370^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12315140293 and 12315140302.

It is not an unprimeable number, because it can be changed into a prime (12315140329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1539392537 + ... + 1539392544.

It is an arithmetic number, because the mean of its divisors is an integer number (3591915929).

Almost surely, 2^12315140324 is an apocalyptic number.

It is an amenable number.

12315140324 is a deficient number, since it is larger than the sum of its proper divisors (9236355250).

12315140324 is a wasteful number, since it uses less digits than its factorization.

12315140324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078785085 (or 3078785083 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 12315140324 its reverse (42304151321), we get a palindrome (54619291645).

The spelling of 12315140324 in words is "twelve billion, three hundred fifteen million, one hundred forty thousand, three hundred twenty-four".