20010202311311 has 2 divisors, whose sum is σ = 20010202311312. Its totient is φ = 20010202311310.

The previous prime is 20010202311287. The next prime is 20010202311331. The reversal of 20010202311311 is 11311320201002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20010202311311 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20010202311311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20010202311331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005101155655 + 10005101155656.

It is an arithmetic number, because the mean of its divisors is an integer number (10005101155656).

Almost surely, 2^{20010202311311} is an apocalyptic number.

20010202311311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010202311311 is an equidigital number, since it uses as much as digits as its factorization.

20010202311311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20010202311311 its reverse (11311320201002), we get a palindrome (31321522512313).

The spelling of 20010202311311 in words is "twenty trillion, ten billion, two hundred two million, three hundred eleven thousand, three hundred eleven".