12315433425 has 24 divisors (see below), whose sum is σ = 20858144160. Its totient is φ = 6408028800.

The previous prime is 12315433423. The next prime is 12315433441. The reversal of 12315433425 is 52433451321.

It is not a de Polignac number, because 12315433425 - 2¹ = 12315433423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12315433423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1999435 + ... + 2005584.

It is an arithmetic number, because the mean of its divisors is an integer number (869089340).

Almost surely, 2^12315433425 is an apocalyptic number.

12315433425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12315433425 is a deficient number, since it is larger than the sum of its proper divisors (8542710735).

12315433425 is a wasteful number, since it uses less digits than its factorization.

12315433425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005073 (or 4005068 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

Adding to 12315433425 its reverse (52433451321), we get a palindrome (64748884746).

The spelling of 12315433425 in words is "twelve billion, three hundred fifteen million, four hundred thirty-three thousand, four hundred twenty-five".