20411100453 has 4 divisors (see below), whose sum is σ = 27214800608. Its totient is φ = 13607400300.

The previous prime is 20411100443. The next prime is 20411100467. The reversal of 20411100453 is 35400111402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20411100453 - 2⁶ = 20411100389 is a prime.

It is a super-2 number, since 2×20411100453² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411100443) 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, 3401850073 + ... + 3401850078.

It is an arithmetic number, because the mean of its divisors is an integer number (6803700152).

Almost surely, 2^20411100453 is an apocalyptic number.

It is an amenable number.

20411100453 is a deficient number, since it is larger than the sum of its proper divisors (6803700155).

20411100453 is an equidigital number, since it uses as much as digits as its factorization.

20411100453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6803700154.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 20411100453 its reverse (35400111402), we get a palindrome (55811211855).

The spelling of 20411100453 in words is "twenty billion, four hundred eleven million, one hundred thousand, four hundred fifty-three".