21433142141 has 8 divisors (see below), whose sum is σ = 21679954560. Its totient is φ = 21187639648.

The previous prime is 21433142077. The next prime is 21433142149. The reversal of 21433142141 is 14124133412.

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

It is not a de Polignac number, because 21433142141 - 2⁶ = 21433142077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21433142141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21433142149) 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, 294551 + ... + 360036.

It is an arithmetic number, because the mean of its divisors is an integer number (2709994320).

Almost surely, 2^21433142141 is an apocalyptic number.

It is an amenable number.

21433142141 is a deficient number, since it is larger than the sum of its proper divisors (246812419).

21433142141 is a wasteful number, since it uses less digits than its factorization.

21433142141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654963.

The product of its digits is 2304, while the sum is 26.

Adding to 21433142141 its reverse (14124133412), we get a palindrome (35557275553).

The spelling of 21433142141 in words is "twenty-one billion, four hundred thirty-three million, one hundred forty-two thousand, one hundred forty-one".