20113011231311 has 2 divisors, whose sum is σ = 20113011231312. Its totient is φ = 20113011231310.

The previous prime is 20113011231293. The next prime is 20113011231323. The reversal of 20113011231311 is 11313211031102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20113011231311 - 2¹⁴ = 20113011214927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20113010231311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056505615655 + 10056505615656.

It is an arithmetic number, because the mean of its divisors is an integer number (10056505615656).

Almost surely, 2^{20113011231311} is an apocalyptic number.

20113011231311 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113011231311 is an equidigital number, since it uses as much as digits as its factorization.

20113011231311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 20113011231311 its reverse (11313211031102), we get a palindrome (31426222262413).

The spelling of 20113011231311 in words is "twenty trillion, one hundred thirteen billion, eleven million, two hundred thirty-one thousand, three hundred eleven".