21443302141 has 8 divisors (see below), whose sum is σ = 21809923200. Its totient is φ = 21076787040.

The previous prime is 21443302103. The next prime is 21443302183. The reversal of 21443302141 is 14120334412.

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

It is a cyclic number.

It is not a de Polignac number, because 21443302141 - 2²¹ = 21441204989 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 (21443302241) 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, 456145 + ... + 500953.

It is an arithmetic number, because the mean of its divisors is an integer number (2726240400).

Almost surely, 2^21443302141 is an apocalyptic number.

It is an amenable number.

21443302141 is a deficient number, since it is larger than the sum of its proper divisors (366621059).

21443302141 is an equidigital number, since it uses as much as digits as its factorization.

21443302141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52979.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21443302141 its reverse (14120334412), we get a palindrome (35563636553).

The spelling of 21443302141 in words is "twenty-one billion, four hundred forty-three million, three hundred two thousand, one hundred forty-one".