21142021301 has 8 divisors (see below), whose sum is σ = 21257385984. Its totient is φ = 21026705680.

The previous prime is 21142021267. The next prime is 21142021349. The reversal of 21142021301 is 10312024112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21142021301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21142021301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21142021361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146980 + ... + 1165266.

It is an arithmetic number, because the mean of its divisors is an integer number (2657173248).

Almost surely, 2^21142021301 is an apocalyptic number.

It is an amenable number.

21142021301 is a deficient number, since it is larger than the sum of its proper divisors (115364683).

21142021301 is a wasteful number, since it uses less digits than its factorization.

21142021301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24531.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21142021301 its reverse (10312024112), we get a palindrome (31454045413).

The spelling of 21142021301 in words is "twenty-one billion, one hundred forty-two million, twenty-one thousand, three hundred one".