21130140301 has 4 divisors (see below), whose sum is σ = 21701225212. Its totient is φ = 20559055392.

The previous prime is 21130140287. The next prime is 21130140347. The reversal of 21130140301 is 10304103112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10659530025 + 10470610276 = 103245^2 + 102326^2 .

It is a cyclic number.

It is not a de Polignac number, because 21130140301 - 2²⁵ = 21096585869 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 (21130143301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285542400 + ... + 285542473.

It is an arithmetic number, because the mean of its divisors is an integer number (5425306303).

Almost surely, 2^21130140301 is an apocalyptic number.

It is an amenable number.

21130140301 is a deficient number, since it is larger than the sum of its proper divisors (571084911).

21130140301 is an equidigital number, since it uses as much as digits as its factorization.

21130140301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571084910.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21130140301 its reverse (10304103112), we get a palindrome (31434243413).

The spelling of 21130140301 in words is "twenty-one billion, one hundred thirty million, one hundred forty thousand, three hundred one".