21343142301 has 16 divisors (see below), whose sum is σ = 32259541440. Its totient is φ = 12442965120.

The previous prime is 21343142287. The next prime is 21343142309. The reversal of 21343142301 is 10324134312.

It is a happy number.

It is not a de Polignac number, because 21343142301 - 2¹⁰ = 21343141277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21343142309) 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, 14400840 + ... + 14402321.

It is an arithmetic number, because the mean of its divisors is an integer number (2016221340).

Almost surely, 2^21343142301 is an apocalyptic number.

It is an amenable number.

21343142301 is a deficient number, since it is larger than the sum of its proper divisors (10916399139).

21343142301 is a wasteful number, since it uses less digits than its factorization.

21343142301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28803196.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21343142301 its reverse (10324134312), we get a palindrome (31667276613).

The spelling of 21343142301 in words is "twenty-one billion, three hundred forty-three million, one hundred forty-two thousand, three hundred one".