20320321319 has 8 divisors (see below), whose sum is σ = 20522385312. Its totient is φ = 20118349440.

The previous prime is 20320321309. The next prime is 20320321331. The reversal of 20320321319 is 91312302302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20320321319 - 2¹⁶ = 20320255783 is a prime.

It is a super-2 number, since 2×20320321319² (a number of 21 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 (20320321309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473099 + ... + 514259.

It is an arithmetic number, because the mean of its divisors is an integer number (2565298164).

Almost surely, 2^20320321319 is an apocalyptic number.

20320321319 is a deficient number, since it is larger than the sum of its proper divisors (202063993).

20320321319 is a wasteful number, since it uses less digits than its factorization.

20320321319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46057.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 20320321319 in words is "twenty billion, three hundred twenty million, three hundred twenty-one thousand, three hundred nineteen".