21301301231 has 8 divisors (see below), whose sum is σ = 24677829024. Its totient is φ = 18008144640.

The previous prime is 21301301227. The next prime is 21301301237. The reversal of 21301301231 is 13210310312.

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 21301301231 - 2² = 21301301227 is a prime.

It is a super-2 number, since 2×21301301231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301301237) 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, 20842250 + ... + 20843271.

It is an arithmetic number, because the mean of its divisors is an integer number (3084728628).

Almost surely, 2^21301301231 is an apocalyptic number.

21301301231 is a deficient number, since it is larger than the sum of its proper divisors (3376527793).

21301301231 is an equidigital number, since it uses as much as digits as its factorization.

21301301231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41685601.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21301301231 its reverse (13210310312), we get a palindrome (34511611543).

The spelling of 21301301231 in words is "twenty-one billion, three hundred one million, three hundred one thousand, two hundred thirty-one".