2313081979 has 4 divisors (see below), whose sum is σ = 2491011376. Its totient is φ = 2135152584.

The previous prime is 2313081977. The next prime is 2313082003. The reversal of 2313081979 is 9791803132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2313081979 - 2¹ = 2313081977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2313081971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88964679 + ... + 88964704.

It is an arithmetic number, because the mean of its divisors is an integer number (622752844).

Almost surely, 2^2313081979 is an apocalyptic number.

2313081979 is a deficient number, since it is larger than the sum of its proper divisors (177929397).

2313081979 is a wasteful number, since it uses less digits than its factorization.

2313081979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177929396.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 2313081979 is about 48094.5109030126. The cubic root of 2313081979 is about 1322.5040429263.

The spelling of 2313081979 in words is "two billion, three hundred thirteen million, eighty-one thousand, nine hundred seventy-nine".