21312332301 has 8 divisors (see below), whose sum is σ = 30602323360. Its totient is φ = 13115281392.

The previous prime is 21312332233. The next prime is 21312332309. The reversal of 21312332301 is 10323321312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21312332301 - 2²⁶ = 21245223437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21312332309) 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, 273234991 + ... + 273235068.

It is an arithmetic number, because the mean of its divisors is an integer number (3825290420).

Almost surely, 2^21312332301 is an apocalyptic number.

It is an amenable number.

21312332301 is a deficient number, since it is larger than the sum of its proper divisors (9289991059).

21312332301 is a wasteful number, since it uses less digits than its factorization.

21312332301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546470075.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21312332301 its reverse (10323321312), we get a palindrome (31635653613).

The spelling of 21312332301 in words is "twenty-one billion, three hundred twelve million, three hundred thirty-two thousand, three hundred one".