21202141305 has 8 divisors (see below), whose sum is σ = 33923426112. Its totient is φ = 11307808688.

The previous prime is 21202141273. The next prime is 21202141319. The reversal of 21202141305 is 50314120212.

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 21202141305 - 2⁵ = 21202141273 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706738029 + ... + 706738058.

It is an arithmetic number, because the mean of its divisors is an integer number (4240428264).

Almost surely, 2^21202141305 is an apocalyptic number.

It is an amenable number.

21202141305 is a deficient number, since it is larger than the sum of its proper divisors (12721284807).

21202141305 is a wasteful number, since it uses less digits than its factorization.

21202141305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413476095.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 21202141305 its reverse (50314120212), we get a palindrome (71516261517).

The spelling of 21202141305 in words is "twenty-one billion, two hundred two million, one hundred forty-one thousand, three hundred five".