21013013301 has 8 divisors (see below), whose sum is σ = 32019829824. Its totient is φ = 12007436160.

The previous prime is 21013013299. The next prime is 21013013303. The reversal of 21013013301 is 10331031012.

It is an interprime number because it is at equal distance from previous prime (21013013299) and next prime (21013013303).

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

It is not a de Polignac number, because 21013013301 - 2¹ = 21013013299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21013013303) 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, 500309820 + ... + 500309861.

It is an arithmetic number, because the mean of its divisors is an integer number (4002478728).

Almost surely, 2^21013013301 is an apocalyptic number.

21013013301 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21013013301 is a deficient number, since it is larger than the sum of its proper divisors (11006816523).

21013013301 is a wasteful number, since it uses less digits than its factorization.

21013013301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000619691.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 21013013301 its reverse (10331031012), we get a palindrome (31344044313).

The spelling of 21013013301 in words is "twenty-one billion, thirteen million, thirteen thousand, three hundred one".