12320351025 has 24 divisors (see below), whose sum is σ = 20381255040. Its totient is φ = 6567109440.

The previous prime is 12320351023. The next prime is 12320351033. The reversal of 12320351025 is 52015302321.

It is a happy number.

It is not a de Polignac number, because 12320351025 - 2¹ = 12320351023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12320350986 and 12320351004.

It is not an unprimeable number, because it can be changed into a prime (12320351023) 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, 88264 + ... + 180086.

It is an arithmetic number, because the mean of its divisors is an integer number (849218960).

Almost surely, 2^12320351025 is an apocalyptic number.

12320351025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12320351025 is a deficient number, since it is larger than the sum of its proper divisors (8060904015).

12320351025 is a wasteful number, since it uses less digits than its factorization.

12320351025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93625 (or 93620 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 12320351025 its reverse (52015302321), we get a palindrome (64335653346).

The spelling of 12320351025 in words is "twelve billion, three hundred twenty million, three hundred fifty-one thousand, twenty-five".