320100111025 has 6 divisors (see below), whose sum is σ = 396924137702. Its totient is φ = 256080088800.

The previous prime is 320100111017. The next prime is 320100111119. The reversal of 320100111025 is 520111001023.

It can be written as a sum of positive squares in 3 ways, for example, as 33837489 + 320066273536 = 5817^2 + 565744^2 .

It is not a de Polignac number, because 320100111025 - 2³ = 320100111017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6402002196 + ... + 6402002245.

Almost surely, 2^320100111025 is an apocalyptic number.

It is an amenable number.

320100111025 is a deficient number, since it is larger than the sum of its proper divisors (76824026677).

320100111025 is a wasteful number, since it uses less digits than its factorization.

320100111025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12804004451 (or 12804004446 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

Adding to 320100111025 its reverse (520111001023), we get a palindrome (840211112048).

The spelling of 320100111025 in words is "three hundred twenty billion, one hundred million, one hundred eleven thousand, twenty-five".