21124232301 has 8 divisors (see below), whose sum is σ = 28199952864. Its totient is φ = 14065666640.

The previous prime is 21124232299. The next prime is 21124232341. The reversal of 21124232301 is 10323242112.

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 21124232301 - 2¹ = 21124232299 is a prime.

It is a super-2 number, since 2×21124232301² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21124232341) 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, 4285851 + ... + 4290776.

It is an arithmetic number, because the mean of its divisors is an integer number (3524994108).

Almost surely, 2^21124232301 is an apocalyptic number.

It is an amenable number.

21124232301 is a deficient number, since it is larger than the sum of its proper divisors (7075720563).

21124232301 is an equidigital number, since it uses as much as digits as its factorization.

21124232301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8577451.

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

Adding to 21124232301 its reverse (10323242112), we get a palindrome (31447474413).

The spelling of 21124232301 in words is "twenty-one billion, one hundred twenty-four million, two hundred thirty-two thousand, three hundred one".