20383114721 has 2 divisors, whose sum is σ = 20383114722. Its totient is φ = 20383114720.

The previous prime is 20383114711. The next prime is 20383114793. The reversal of 20383114721 is 12741138302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20373280225 + 9834496 = 142735^2 + 3136^2 .

It is a cyclic number.

It is not a de Polignac number, because 20383114721 - 2³⁰ = 19309372897 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20383114711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10191557360 + 10191557361.

It is an arithmetic number, because the mean of its divisors is an integer number (10191557361).

Almost surely, 2^20383114721 is an apocalyptic number.

It is an amenable number.

20383114721 is a deficient number, since it is larger than the sum of its proper divisors (1).

20383114721 is an equidigital number, since it uses as much as digits as its factorization.

20383114721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 20383114721 in words is "twenty billion, three hundred eighty-three million, one hundred fourteen thousand, seven hundred twenty-one".