20113112213011 has 2 divisors, whose sum is σ = 20113112213012. Its totient is φ = 20113112213010.

The previous prime is 20113112213009. The next prime is 20113112213017. The reversal of 20113112213011 is 11031221131102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20113112213011 - 2¹ = 20113112213009 is a prime.

It is a super-2 number, since 2×20113112213011² (a number of 27 digits) contains 22 as substring.

Together with 20113112213009, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20113112213011.

It is not a weakly prime, because it can be changed into another prime (20113112213017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056556106505 + 10056556106506.

It is an arithmetic number, because the mean of its divisors is an integer number (10056556106506).

Almost surely, 2^{20113112213011} is an apocalyptic number.

20113112213011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113112213011 is an equidigital number, since it uses as much as digits as its factorization.

20113112213011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 20113112213011 its reverse (11031221131102), we get a palindrome (31144333344113).

The spelling of 20113112213011 in words is "twenty trillion, one hundred thirteen billion, one hundred twelve million, two hundred thirteen thousand, eleven".