1320430025 has 24 divisors (see below), whose sum is σ = 1681288224. Its totient is φ = 1028160000.

The previous prime is 1320430021. The next prime is 1320430039. The reversal of 1320430025 is 5200340231.

It is a happy number.

It is not a de Polignac number, because 1320430025 - 2² = 1320430021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320429979 and 1320430006.

It is not an unprimeable number, because it can be changed into a prime (1320430021) 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, 328025 + ... + 332025.

It is an arithmetic number, because the mean of its divisors is an integer number (70053676).

Almost surely, 2^1320430025 is an apocalyptic number.

It is an amenable number.

1320430025 is a deficient number, since it is larger than the sum of its proper divisors (360858199).

1320430025 is a wasteful number, since it uses less digits than its factorization.

1320430025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4361 (or 4356 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1320430025 is about 36337.7217915488. The cubic root of 1320430025 is about 1097.0804189642.

Adding to 1320430025 its reverse (5200340231), we get a palindrome (6520770256).

The spelling of 1320430025 in words is "one billion, three hundred twenty million, four hundred thirty thousand, twenty-five".