20311200001 has 2 divisors, whose sum is σ = 20311200002. Its totient is φ = 20311200000.

The previous prime is 20311199981. The next prime is 20311200047. The reversal of 20311200001 is 10000211302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16738149376 + 3573050625 = 129376^2 + 59775^2 .

It is a cyclic number.

It is not a de Polignac number, because 20311200001 - 2¹⁷ = 20311068929 is a prime.

It is not a weakly prime, because it can be changed into another prime (20311200401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155600000 + 10155600001.

It is an arithmetic number, because the mean of its divisors is an integer number (10155600001).

Almost surely, 2^20311200001 is an apocalyptic number.

It is an amenable number.

20311200001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20311200001 is an equidigital number, since it uses as much as digits as its factorization.

20311200001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20311200001 its reverse (10000211302), we get a palindrome (30311411303).

The spelling of 20311200001 in words is "twenty billion, three hundred eleven million, two hundred thousand, one".