21430563301 has 4 divisors (see below), whose sum is σ = 24492072352. Its totient is φ = 18369054252.

The previous prime is 21430563241. The next prime is 21430563337. The reversal of 21430563301 is 10336503412.

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 21430563301 - 2¹³ = 21430555109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21430563301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21430564301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1530754515 + ... + 1530754528.

It is an arithmetic number, because the mean of its divisors is an integer number (6123018088).

Almost surely, 2^21430563301 is an apocalyptic number.

It is an amenable number.

21430563301 is a deficient number, since it is larger than the sum of its proper divisors (3061509051).

21430563301 is an equidigital number, since it uses as much as digits as its factorization.

21430563301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061509050.

The product of its (nonzero) digits is 6480, while the sum is 28.

The spelling of 21430563301 in words is "twenty-one billion, four hundred thirty million, five hundred sixty-three thousand, three hundred one".