12721011301 has 4 divisors (see below), whose sum is σ = 12721450432. Its totient is φ = 12720572172.

The previous prime is 12721011287. The next prime is 12721011349. The reversal of 12721011301 is 10311012721.

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 12721011301 - 2¹¹ = 12721009253 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 (12721012301) 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, 172791 + ... + 235156.

It is an arithmetic number, because the mean of its divisors is an integer number (3180362608).

Almost surely, 2^12721011301 is an apocalyptic number.

It is an amenable number.

12721011301 is a deficient number, since it is larger than the sum of its proper divisors (439131).

12721011301 is an equidigital number, since it uses as much as digits as its factorization.

12721011301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439130.

The product of its (nonzero) digits is 84, while the sum is 19.

The spelling of 12721011301 in words is "twelve billion, seven hundred twenty-one million, eleven thousand, three hundred one".