20322303277 has 2 divisors, whose sum is σ = 20322303278. Its totient is φ = 20322303276.

The previous prime is 20322303263. The next prime is 20322303307. The reversal of 20322303277 is 77230322302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12639605476 + 7682697801 = 112426^2 + 87651^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20322303277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20322300277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161151638 + 10161151639.

It is an arithmetic number, because the mean of its divisors is an integer number (10161151639).

Almost surely, 2^20322303277 is an apocalyptic number.

It is an amenable number.

20322303277 is a deficient number, since it is larger than the sum of its proper divisors (1).

20322303277 is an equidigital number, since it uses as much as digits as its factorization.

20322303277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 31.

Adding to 20322303277 its reverse (77230322302), we get a palindrome (97552625579).

The spelling of 20322303277 in words is "twenty billion, three hundred twenty-two million, three hundred three thousand, two hundred seventy-seven".