8420111325 has 96 divisors (see below), whose sum is σ = 15827201280. Its totient is φ = 4387219200.

The previous prime is 8420111311. The next prime is 8420111347. The reversal of 8420111325 is 5231110248.

It is not a de Polignac number, because 8420111325 - 2⁸ = 8420111069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13343760 + ... + 13344390.

It is an arithmetic number, because the mean of its divisors is an integer number (164866680).

Almost surely, 2^8420111325 is an apocalyptic number.

It is an amenable number.

8420111325 is a deficient number, since it is larger than the sum of its proper divisors (7407089955).

8420111325 is a wasteful number, since it uses less digits than its factorization.

8420111325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 8420111325 is about 91761.1645795758. The cubic root of 8420111325 is about 2034.4137283714.

The spelling of 8420111325 in words is "eight billion, four hundred twenty million, one hundred eleven thousand, three hundred twenty-five".