12315142536 has 32 divisors (see below), whose sum is σ = 30806425440. Its totient is φ = 4102571648.

The previous prime is 12315142501. The next prime is 12315142549. The reversal of 12315142536 is 63524151321.

It is a super-2 number, since 2×12315142536² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12315142497 and 12315142506.

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, 113901 + ... + 193916.

It is an arithmetic number, because the mean of its divisors is an integer number (962700795).

Almost surely, 2^12315142536 is an apocalyptic number.

It is an amenable number.

12315142536 is an abundant number, since it is smaller than the sum of its proper divisors (18491282904).

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

12315142536 is a wasteful number, since it uses less digits than its factorization.

12315142536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309493 (or 309489 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

Adding to 12315142536 its reverse (63524151321), we get a palindrome (75839293857).

The spelling of 12315142536 in words is "twelve billion, three hundred fifteen million, one hundred forty-two thousand, five hundred thirty-six".