20013113011 has 2 divisors, whose sum is σ = 20013113012. Its totient is φ = 20013113010.

The previous prime is 20013112991. The next prime is 20013113023. The reversal of 20013113011 is 11031131002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20013113011 - 2⁵ = 20013112979 is a prime.

It is a super-2 number, since 2×20013113011² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20013112982 and 20013113000.

It is not a weakly prime, because it can be changed into another prime (20013113311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006556505 + 10006556506.

It is an arithmetic number, because the mean of its divisors is an integer number (10006556506).

Almost surely, 2^20013113011 is an apocalyptic number.

20013113011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013113011 is an equidigital number, since it uses as much as digits as its factorization.

20013113011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 20013113011 its reverse (11031131002), we get a palindrome (31044244013).

The spelling of 20013113011 in words is "twenty billion, thirteen million, one hundred thirteen thousand, eleven".