83120313 has 4 divisors (see below), whose sum is σ = 110827088. Its totient is φ = 55413540.

The previous prime is 83120311. The next prime is 83120371. The reversal of 83120313 is 31302138.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 83120313 - 2¹ = 83120311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83120313.

It is not an unprimeable number, because it can be changed into a prime (83120311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13853383 + ... + 13853388.

It is an arithmetic number, because the mean of its divisors is an integer number (27706772).

Almost surely, 2^83120313 is an apocalyptic number.

It is an amenable number.

83120313 is a deficient number, since it is larger than the sum of its proper divisors (27706775).

83120313 is a wasteful number, since it uses less digits than its factorization.

83120313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27706774.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 83120313 is about 9117.0342217193. The cubic root of 83120313 is about 436.4177339851.

The spelling of 83120313 in words is "eighty-three million, one hundred twenty thousand, three hundred thirteen".