20321140607 has 2 divisors, whose sum is σ = 20321140608. Its totient is φ = 20321140606.

The previous prime is 20321140603. The next prime is 20321140649. The reversal of 20321140607 is 70604112302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20321140607 - 2² = 20321140603 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20321140603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160570303 + 10160570304.

It is an arithmetic number, because the mean of its divisors is an integer number (10160570304).

Almost surely, 2^20321140607 is an apocalyptic number.

20321140607 is a deficient number, since it is larger than the sum of its proper divisors (1).

20321140607 is an equidigital number, since it uses as much as digits as its factorization.

20321140607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 20321140607 its reverse (70604112302), we get a palindrome (90925252909).

The spelling of 20321140607 in words is "twenty billion, three hundred twenty-one million, one hundred forty thousand, six hundred seven".