20411023411103 has 4 divisors (see below), whose sum is σ = 21981102135048. Its totient is φ = 18840944687160.

The previous prime is 20411023411049. The next prime is 20411023411117. The reversal of 20411023411103 is 30111432011402.

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 20411023411103 - 2¹⁶ = 20411023345567 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 (20411023411153) 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, 785039361953 + ... + 785039361978.

It is an arithmetic number, because the mean of its divisors is an integer number (5495275533762).

Almost surely, 2^{20411023411103} is an apocalyptic number.

20411023411103 is a deficient number, since it is larger than the sum of its proper divisors (1570078723945).

20411023411103 is a wasteful number, since it uses less digits than its factorization.

20411023411103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570078723944.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 20411023411103 its reverse (30111432011402), we get a palindrome (50522455422505).

The spelling of 20411023411103 in words is "twenty trillion, four hundred eleven billion, twenty-three million, four hundred eleven thousand, one hundred three".