21423411141 has 8 divisors (see below), whose sum is σ = 31161325344. Its totient is φ = 12983885520.

The previous prime is 21423411089. The next prime is 21423411151. The reversal of 21423411141 is 14111432412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21423411141 - 2³⁰ = 20349669317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21423411151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324597106 + ... + 324597171.

It is an arithmetic number, because the mean of its divisors is an integer number (3895165668).

Almost surely, 2^21423411141 is an apocalyptic number.

It is an amenable number.

21423411141 is a deficient number, since it is larger than the sum of its proper divisors (9737914203).

21423411141 is a wasteful number, since it uses less digits than its factorization.

21423411141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649194291.

The product of its digits is 768, while the sum is 24.

Adding to 21423411141 its reverse (14111432412), we get a palindrome (35534843553).

The spelling of 21423411141 in words is "twenty-one billion, four hundred twenty-three million, four hundred eleven thousand, one hundred forty-one".