20111310001 has 2 divisors, whose sum is σ = 20111310002. Its totient is φ = 20111310000.

The previous prime is 20111309993. The next prime is 20111310007. The reversal of 20111310001 is 10001311102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18415847025 + 1695462976 = 135705^2 + 41176^2 .

It is a cyclic number.

It is not a de Polignac number, because 20111310001 - 2³ = 20111309993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20111310001.

It is not a weakly prime, because it can be changed into another prime (20111310007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055655000 + 10055655001.

It is an arithmetic number, because the mean of its divisors is an integer number (10055655001).

Almost surely, 2^20111310001 is an apocalyptic number.

It is an amenable number.

20111310001 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111310001 is an equidigital number, since it uses as much as digits as its factorization.

20111310001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 20111310001 its reverse (10001311102), we get a palindrome (30112621103).

The spelling of 20111310001 in words is "twenty billion, one hundred eleven million, three hundred ten thousand, one".