20113411 has 4 divisors (see below), whose sum is σ = 20604024. Its totient is φ = 19622800.

The previous prime is 20113403. The next prime is 20113417. The reversal of 20113411 is 11431102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20113411 - 2³ = 20113403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20113391 and 20113400.

It is not an unprimeable number, because it can be changed into a prime (20113417) 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, 245245 + ... + 245326.

It is an arithmetic number, because the mean of its divisors is an integer number (5151006).

Almost surely, 2^20113411 is an apocalyptic number.

20113411 is a deficient number, since it is larger than the sum of its proper divisors (490613).

20113411 is an equidigital number, since it uses as much as digits as its factorization.

20113411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490612.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 20113411 is about 4484.7977657861. The cubic root of 20113411 is about 271.9538695918.

Adding to 20113411 its reverse (11431102), we get a palindrome (31544513).

The spelling of 20113411 in words is "twenty million, one hundred thirteen thousand, four hundred eleven".