21013110301 has 4 divisors (see below), whose sum is σ = 21043520704. Its totient is φ = 20982699900.

The previous prime is 21013110271. The next prime is 21013110311. The reversal of 21013110301 is 10301131012.

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 21013110301 - 2¹³ = 21013102109 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 (21013110311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15204165 + ... + 15205546.

It is an arithmetic number, because the mean of its divisors is an integer number (5260880176).

Almost surely, 2^21013110301 is an apocalyptic number.

It is an amenable number.

21013110301 is a deficient number, since it is larger than the sum of its proper divisors (30410403).

21013110301 is an equidigital number, since it uses as much as digits as its factorization.

21013110301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30410402.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 21013110301 its reverse (10301131012), we get a palindrome (31314241313).

The spelling of 21013110301 in words is "twenty-one billion, thirteen million, one hundred ten thousand, three hundred one".