12345215325 has 24 divisors (see below), whose sum is σ = 21485008800. Its totient is φ = 6237581760.

The previous prime is 12345215303. The next prime is 12345215341. The reversal of 12345215325 is 52351254321.

It is not a de Polignac number, because 12345215325 - 2⁹ = 12345214813 is a prime.

It is a super-2 number, since 2×12345215325² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4330230 + ... + 4333079.

It is an arithmetic number, because the mean of its divisors is an integer number (895208700).

Almost surely, 2^12345215325 is an apocalyptic number.

12345215325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12345215325 is a deficient number, since it is larger than the sum of its proper divisors (9139793475).

12345215325 is a wasteful number, since it uses less digits than its factorization.

12345215325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8663341 (or 8663336 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

Adding to 12345215325 its reverse (52351254321), we get a palindrome (64696469646).

The spelling of 12345215325 in words is "twelve billion, three hundred forty-five million, two hundred fifteen thousand, three hundred twenty-five".