21441402301 has 4 divisors (see below), whose sum is σ = 23390620704. Its totient is φ = 19492183900.

The previous prime is 21441402287. The next prime is 21441402313. The reversal of 21441402301 is 10320414412.

It is a happy number.

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 21441402301 - 2⁷ = 21441402173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21441402601) 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, 974609185 + ... + 974609206.

It is an arithmetic number, because the mean of its divisors is an integer number (5847655176).

Almost surely, 2^21441402301 is an apocalyptic number.

It is an amenable number.

21441402301 is a deficient number, since it is larger than the sum of its proper divisors (1949218403).

21441402301 is a wasteful number, since it uses less digits than its factorization.

21441402301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949218402.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21441402301 its reverse (10320414412), we get a palindrome (31761816713).

The spelling of 21441402301 in words is "twenty-one billion, four hundred forty-one million, four hundred two thousand, three hundred one".