21433343141 has 8 divisors (see below), whose sum is σ = 24896811264. Its totient is φ = 18070265520.

The previous prime is 21433343131. The next prime is 21433343143. The reversal of 21433343141 is 14134333412.

It is a happy number.

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 21433343141 - 2²² = 21429148837 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 (21433343143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25097165 + ... + 25098018.

It is an arithmetic number, because the mean of its divisors is an integer number (3112101408).

Almost surely, 2^21433343141 is an apocalyptic number.

It is an amenable number.

21433343141 is a deficient number, since it is larger than the sum of its proper divisors (3463468123).

21433343141 is an equidigital number, since it uses as much as digits as its factorization.

21433343141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50195251.

The product of its digits is 10368, while the sum is 29.

Adding to 21433343141 its reverse (14134333412), we get a palindrome (35567676553).

The spelling of 21433343141 in words is "twenty-one billion, four hundred thirty-three million, three hundred forty-three thousand, one hundred forty-one".