21426443301 has 8 divisors (see below), whose sum is σ = 28574314560. Its totient is φ = 14281433792.

The previous prime is 21426443299. The next prime is 21426443329. The reversal of 21426443301 is 10334462412.

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 21426443301 - 2¹ = 21426443299 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21426443501) 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, 697905 + ... + 727958.

It is an arithmetic number, because the mean of its divisors is an integer number (3571789320).

Almost surely, 2^21426443301 is an apocalyptic number.

It is an amenable number.

21426443301 is a deficient number, since it is larger than the sum of its proper divisors (7147871259).

21426443301 is a wasteful number, since it uses less digits than its factorization.

21426443301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430875.

The product of its (nonzero) digits is 13824, while the sum is 30.

The spelling of 21426443301 in words is "twenty-one billion, four hundred twenty-six million, four hundred forty-three thousand, three hundred one".