20323210319 has 2 divisors, whose sum is σ = 20323210320. Its totient is φ = 20323210318.

The previous prime is 20323210309. The next prime is 20323210381. The reversal of 20323210319 is 91301232302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20323210319 is a prime.

It is a super-4 number, since 4×20323210319⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20323210309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161605159 + 10161605160.

It is an arithmetic number, because the mean of its divisors is an integer number (10161605160).

Almost surely, 2^20323210319 is an apocalyptic number.

20323210319 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323210319 is an equidigital number, since it uses as much as digits as its factorization.

20323210319 is an evil number, because the sum of its binary digits is even.

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

The spelling of 20323210319 in words is "twenty billion, three hundred twenty-three million, two hundred ten thousand, three hundred nineteen".