20101311337 has 2 divisors, whose sum is σ = 20101311338. Its totient is φ = 20101311336.

The previous prime is 20101311319. The next prime is 20101311379. The reversal of 20101311337 is 73311310102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13705150761 + 6396160576 = 117069^2 + 79976^2 .

It is a cyclic number.

It is not a de Polignac number, because 20101311337 - 2¹¹ = 20101309289 is a prime.

It is not a weakly prime, because it can be changed into another prime (20101311397) 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, 10050655668 + 10050655669.

It is an arithmetic number, because the mean of its divisors is an integer number (10050655669).

Almost surely, 2^20101311337 is an apocalyptic number.

It is an amenable number.

20101311337 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101311337 is an equidigital number, since it uses as much as digits as its factorization.

20101311337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 22.

Adding to 20101311337 its reverse (73311310102), we get a palindrome (93412621439).

The spelling of 20101311337 in words is "twenty billion, one hundred one million, three hundred eleven thousand, three hundred thirty-seven".