21410441123 has 4 divisors (see below), whose sum is σ = 21456288360. Its totient is φ = 21364593888.

The previous prime is 21410441093. The next prime is 21410441219. The reversal of 21410441123 is 32114401412.

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 21410441123 - 2¹⁰ = 21410440099 is a prime.

It is a super-2 number, since 2×21410441123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21410443123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22922918 + ... + 22923851.

It is an arithmetic number, because the mean of its divisors is an integer number (5364072090).

Almost surely, 2^21410441123 is an apocalyptic number.

21410441123 is a deficient number, since it is larger than the sum of its proper divisors (45847237).

21410441123 is an equidigital number, since it uses as much as digits as its factorization.

21410441123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45847236.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21410441123 its reverse (32114401412), we get a palindrome (53524842535).

The spelling of 21410441123 in words is "twenty-one billion, four hundred ten million, four hundred forty-one thousand, one hundred twenty-three".