21231010301 has 4 divisors (see below), whose sum is σ = 21231996192. Its totient is φ = 21230024412.

The previous prime is 21231010291. The next prime is 21231010309. The reversal of 21231010301 is 10301013212.

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 21231010301 - 2⁶ = 21231010237 is a prime.

It is a super-2 number, since 2×21231010301² (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 (21231010309) 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, 459905 + ... + 503958.

It is an arithmetic number, because the mean of its divisors is an integer number (5307999048).

Almost surely, 2^21231010301 is an apocalyptic number.

It is an amenable number.

21231010301 is a deficient number, since it is larger than the sum of its proper divisors (985891).

21231010301 is an equidigital number, since it uses as much as digits as its factorization.

21231010301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985890.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21231010301 its reverse (10301013212), we get a palindrome (31532023513).

The spelling of 21231010301 in words is "twenty-one billion, two hundred thirty-one million, ten thousand, three hundred one".