21432343323041 has 16 divisors (see below), whose sum is σ = 24501325806720. Its totient is φ = 18365166487680.

The previous prime is 21432343323031. The next prime is 21432343323049. The reversal of 21432343323041 is 14032334323412.

It is a cyclic number.

It is not a de Polignac number, because 21432343323041 - 2¹⁴ = 21432343306657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21432343322992 and 21432343323010.

It is not an unprimeable number, because it can be changed into a prime (21432343323049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377654030 + ... + 377710776.

It is an arithmetic number, because the mean of its divisors is an integer number (1531332862920).

Almost surely, 2^{21432343323041} is an apocalyptic number.

It is an amenable number.

21432343323041 is a deficient number, since it is larger than the sum of its proper divisors (3068982483679).

21432343323041 is an equidigital number, since it uses as much as digits as its factorization.

21432343323041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71704.

The product of its (nonzero) digits is 124416, while the sum is 35.

Adding to 21432343323041 its reverse (14032334323412), we get a palindrome (35464677646453).

The spelling of 21432343323041 in words is "twenty-one trillion, four hundred thirty-two billion, three hundred forty-three million, three hundred twenty-three thousand, forty-one".