20035213111 has 2 divisors, whose sum is σ = 20035213112. Its totient is φ = 20035213110.

The previous prime is 20035213109. The next prime is 20035213183. The reversal of 20035213111 is 11131253002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20035213111 - 2¹ = 20035213109 is a prime.

Together with 20035213109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20035213811) 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, 10017606555 + 10017606556.

It is an arithmetic number, because the mean of its divisors is an integer number (10017606556).

Almost surely, 2^20035213111 is an apocalyptic number.

20035213111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20035213111 is an equidigital number, since it uses as much as digits as its factorization.

20035213111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 20035213111 its reverse (11131253002), we get a palindrome (31166466113).

The spelling of 20035213111 in words is "twenty billion, thirty-five million, two hundred thirteen thousand, one hundred eleven".