319661321163 has 4 divisors (see below), whose sum is σ = 426215094888. Its totient is φ = 213107547440.

The previous prime is 319661321143. The next prime is 319661321201. The reversal of 319661321163 is 361123166913.

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 319661321163 - 2⁵ = 319661321131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (319661321143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53276886858 + ... + 53276886863.

It is an arithmetic number, because the mean of its divisors is an integer number (106553773722).

Almost surely, 2^319661321163 is an apocalyptic number.

319661321163 is a deficient number, since it is larger than the sum of its proper divisors (106553773725).

319661321163 is a wasteful number, since it uses less digits than its factorization.

319661321163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106553773724.

The product of its digits is 104976, while the sum is 42.

The spelling of 319661321163 in words is "three hundred nineteen billion, six hundred sixty-one million, three hundred twenty-one thousand, one hundred sixty-three".