21434024201 has 8 divisors (see below), whose sum is σ = 22696143624. Its totient is φ = 20172048640.

The previous prime is 21434024189. The next prime is 21434024291. The reversal of 21434024201 is 10242043412.

It can be written as a sum of positive squares in 4 ways, for example, as 4188031225 + 17245992976 = 64715^2 + 131324^2 .

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 21434024201 - 2¹⁸ = 21433762057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21434024291) 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, 494171 + ... + 535791.

It is an arithmetic number, because the mean of its divisors is an integer number (2837017953).

Almost surely, 2^21434024201 is an apocalyptic number.

It is an amenable number.

21434024201 is a deficient number, since it is larger than the sum of its proper divisors (1262119423).

21434024201 is a wasteful number, since it uses less digits than its factorization.

21434024201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71931.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 21434024201 its reverse (10242043412), we get a palindrome (31676067613).

The spelling of 21434024201 in words is "twenty-one billion, four hundred thirty-four million, twenty-four thousand, two hundred one".