20413210111 has 4 divisors (see below), whose sum is σ = 23329382992. Its totient is φ = 17497037232.

The previous prime is 20413210073. The next prime is 20413210117. The reversal of 20413210111 is 11101231402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11101231402 = 2 ⋅5550615701.

It is a cyclic number.

It is not a de Polignac number, because 20413210111 - 2⁷ = 20413209983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413210117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458086430 + ... + 1458086443.

It is an arithmetic number, because the mean of its divisors is an integer number (5832345748).

Almost surely, 2^20413210111 is an apocalyptic number.

20413210111 is a deficient number, since it is larger than the sum of its proper divisors (2916172881).

20413210111 is an equidigital number, since it uses as much as digits as its factorization.

20413210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916172880.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20413210111 its reverse (11101231402), we get a palindrome (31514441513).

The spelling of 20413210111 in words is "twenty billion, four hundred thirteen million, two hundred ten thousand, one hundred eleven".