21403232301 has 32 divisors (see below), whose sum is σ = 31405470336. Its totient is φ = 12857984000.

The previous prime is 21403232267. The next prime is 21403232303. The reversal of 21403232301 is 10323230412.

It is a cyclic number.

It is not a de Polignac number, because 21403232301 - 2⁹ = 21403231789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21403232303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3437371 + ... + 3443591.

It is an arithmetic number, because the mean of its divisors is an integer number (981420948).

Almost surely, 2^21403232301 is an apocalyptic number.

It is an amenable number.

21403232301 is a deficient number, since it is larger than the sum of its proper divisors (10002238035).

21403232301 is a wasteful number, since it uses less digits than its factorization.

21403232301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7133.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21403232301 its reverse (10323230412), we get a palindrome (31726462713).

The spelling of 21403232301 in words is "twenty-one billion, four hundred three million, two hundred thirty-two thousand, three hundred one".