319883020981 has 16 divisors (see below), whose sum is σ = 345974582016. Its totient is φ = 294602323456.

The previous prime is 319883020969. The next prime is 319883020993. The reversal of 319883020981 is 189020388913.

It is an interprime number because it is at equal distance from previous prime (319883020969) and next prime (319883020993).

It is a cyclic number.

It is not a de Polignac number, because 319883020981 - 2⁹ = 319883020469 is a prime.

It is a super-2 number, since 2×319883020981² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319883021981) 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 15 ways as a sum of consecutive naturals, for example, 4291230 + ... + 4365136.

It is an arithmetic number, because the mean of its divisors is an integer number (21623411376).

Almost surely, 2^319883020981 is an apocalyptic number.

It is an amenable number.

319883020981 is a deficient number, since it is larger than the sum of its proper divisors (26091561035).

319883020981 is a wasteful number, since it uses less digits than its factorization.

319883020981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79388.

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 319883020981 in words is "three hundred nineteen billion, eight hundred eighty-three million, twenty thousand, nine hundred eighty-one".