20011320767 has 2 divisors, whose sum is σ = 20011320768. Its totient is φ = 20011320766.

The previous prime is 20011320761. The next prime is 20011320773. The reversal of 20011320767 is 76702311002.

It is a balanced prime because it is at equal distance from previous prime (20011320761) and next prime (20011320773).

It is a cyclic number.

It is not a de Polignac number, because 20011320767 - 2¹⁰ = 20011319743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20011320761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005660383 + 10005660384.

It is an arithmetic number, because the mean of its divisors is an integer number (10005660384).

Almost surely, 2^20011320767 is an apocalyptic number.

20011320767 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011320767 is an equidigital number, since it uses as much as digits as its factorization.

20011320767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 29.

Adding to 20011320767 its reverse (76702311002), we get a palindrome (96713631769).

The spelling of 20011320767 in words is "twenty billion, eleven million, three hundred twenty thousand, seven hundred sixty-seven".