21343201401 has 8 divisors (see below), whose sum is σ = 28543577824. Its totient is φ = 14185812960.

The previous prime is 21343201393. The next prime is 21343201423. The reversal of 21343201401 is 10410234312.

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

It is not a de Polignac number, because 21343201401 - 2³ = 21343201393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21343201801) 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, 10745836 + ... + 10747821.

It is an arithmetic number, because the mean of its divisors is an integer number (3567947228).

Almost surely, 2^21343201401 is an apocalyptic number.

It is an amenable number.

21343201401 is a deficient number, since it is larger than the sum of its proper divisors (7200376423).

21343201401 is a wasteful number, since it uses less digits than its factorization.

21343201401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21493991.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21343201401 its reverse (10410234312), we get a palindrome (31753435713).

The spelling of 21343201401 in words is "twenty-one billion, three hundred forty-three million, two hundred one thousand, four hundred one".