21010302101 has 8 divisors (see below), whose sum is σ = 21199367040. Its totient is φ = 20821292352.

The previous prime is 21010302097. The next prime is 21010302143. The reversal of 21010302101 is 10120301012.

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 21010302101 - 2² = 21010302097 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 (21010302151) 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, 1353140 + ... + 1368578.

It is an arithmetic number, because the mean of its divisors is an integer number (2649920880).

Almost surely, 2^21010302101 is an apocalyptic number.

It is an amenable number.

21010302101 is a deficient number, since it is larger than the sum of its proper divisors (189064939).

21010302101 is a wasteful number, since it uses less digits than its factorization.

21010302101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27595.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 21010302101 its reverse (10120301012), we get a palindrome (31130603113).

The spelling of 21010302101 in words is "twenty-one billion, ten million, three hundred two thousand, one hundred one".