21010301101 has 4 divisors (see below), whose sum is σ = 21457328832. Its totient is φ = 20563273372.

The previous prime is 21010301093. The next prime is 21010301107. The reversal of 21010301101 is 10110301012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21010301101 - 2³ = 21010301093 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 (21010301107) 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 3 ways as a sum of consecutive naturals, for example, 223513795 + ... + 223513888.

It is an arithmetic number, because the mean of its divisors is an integer number (5364332208).

Almost surely, 2^21010301101 is an apocalyptic number.

It is an amenable number.

21010301101 is a deficient number, since it is larger than the sum of its proper divisors (447027731).

21010301101 is an equidigital number, since it uses as much as digits as its factorization.

21010301101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447027730.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 21010301101 its reverse (10110301012), we get a palindrome (31120602113).

The spelling of 21010301101 in words is "twenty-one billion, ten million, three hundred one thousand, one hundred one".