21404213301 has 8 divisors (see below), whose sum is σ = 28544680000. Its totient is φ = 14266611072.

The previous prime is 21404213291. The next prime is 21404213353. The reversal of 21404213301 is 10331240412.

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

It is not a de Polignac number, because 21404213301 - 2⁹ = 21404212789 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 (21404213371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698620 + ... + 728613.

It is an arithmetic number, because the mean of its divisors is an integer number (3568085000).

Almost surely, 2^21404213301 is an apocalyptic number.

It is an amenable number.

21404213301 is a deficient number, since it is larger than the sum of its proper divisors (7140466699).

21404213301 is a wasteful number, since it uses less digits than its factorization.

21404213301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432235.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21404213301 its reverse (10331240412), we get a palindrome (31735453713).

The spelling of 21404213301 in words is "twenty-one billion, four hundred four million, two hundred thirteen thousand, three hundred one".