21343342141 has 8 divisors (see below), whose sum is σ = 23287721184. Its totient is φ = 19399642320.

The previous prime is 21343342133. The next prime is 21343342147. The reversal of 21343342141 is 14124334312.

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 21343342141 - 2³ = 21343342133 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 (21343342147) 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, 102951 + ... + 230836.

It is an arithmetic number, because the mean of its divisors is an integer number (2910965148).

Almost surely, 2^21343342141 is an apocalyptic number.

It is an amenable number.

21343342141 is a deficient number, since it is larger than the sum of its proper divisors (1944379043).

21343342141 is a wasteful number, since it uses less digits than its factorization.

21343342141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339611.

The product of its digits is 6912, while the sum is 28.

Adding to 21343342141 its reverse (14124334312), we get a palindrome (35467676453).

The spelling of 21343342141 in words is "twenty-one billion, three hundred forty-three million, three hundred forty-two thousand, one hundred forty-one".