319803213641 has 2 divisors, whose sum is σ = 319803213642. Its totient is φ = 319803213640.

The previous prime is 319803213599. The next prime is 319803213671. The reversal of 319803213641 is 146312308913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289986558016 + 29816655625 = 538504^2 + 172675^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-319803213641 is a prime.

It is a super-2 number, since 2×319803213641² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (319803213671) 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 as a sum of consecutive naturals, namely, 159901606820 + 159901606821.

It is an arithmetic number, because the mean of its divisors is an integer number (159901606821).

Almost surely, 2^319803213641 is an apocalyptic number.

It is an amenable number.

319803213641 is a deficient number, since it is larger than the sum of its proper divisors (1).

319803213641 is an equidigital number, since it uses as much as digits as its factorization.

319803213641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 319803213641 in words is "three hundred nineteen billion, eight hundred three million, two hundred thirteen thousand, six hundred forty-one".