21040011301 has 8 divisors (see below), whose sum is σ = 21313944344. Its totient is φ = 20767242240.

The previous prime is 21040011281. The next prime is 21040011313. The reversal of 21040011301 is 10311004012.

It can be written as a sum of positive squares in 4 ways, for example, as 1470799201 + 19569212100 = 38351^2 + 139890^2 .

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 21040011301 - 2⁷ = 21040011173 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 (21040011371) 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, 254580 + ... + 326941.

It is an arithmetic number, because the mean of its divisors is an integer number (2664243043).

Almost surely, 2^21040011301 is an apocalyptic number.

It is an amenable number.

21040011301 is a deficient number, since it is larger than the sum of its proper divisors (273933043).

21040011301 is an equidigital number, since it uses as much as digits as its factorization.

21040011301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581991.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21040011301 its reverse (10311004012), we get a palindrome (31351015313).

The spelling of 21040011301 in words is "twenty-one billion, forty million, eleven thousand, three hundred one".