20322323429 has 2 divisors, whose sum is σ = 20322323430. Its totient is φ = 20322323428.

The previous prime is 20322323393. The next prime is 20322323443. The reversal of 20322323429 is 92432322302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11896919329 + 8425404100 = 109073^2 + 91790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20322323429 is a prime.

It is a super-3 number, since 3×20322323429³ (a number of 32 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20322323395 and 20322323404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20322323029) 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, 10161161714 + 10161161715.

It is an arithmetic number, because the mean of its divisors is an integer number (10161161715).

Almost surely, 2^20322323429 is an apocalyptic number.

It is an amenable number.

20322323429 is a deficient number, since it is larger than the sum of its proper divisors (1).

20322323429 is an equidigital number, since it uses as much as digits as its factorization.

20322323429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 32.

The spelling of 20322323429 in words is "twenty billion, three hundred twenty-two million, three hundred twenty-three thousand, four hundred twenty-nine".