21013041141 has 10 divisors (see below), whose sum is σ = 31389851702. Its totient is φ = 14008694040.

The previous prime is 21013041139. The next prime is 21013041143. The reversal of 21013041141 is 14114031012.

21013041141 is a `hidden beast` number, since 210 + 1 + 3 + 0 + 411 + 41 = 666.

It is an interprime number because it is at equal distance from previous prime (21013041139) and next prime (21013041143).

It can be written as a sum of positive squares in only one way, i.e., 19072991025 + 1940050116 = 138105^2 + 44046^2 .

It is not a de Polignac number, because 21013041141 - 2¹ = 21013041139 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21013041143) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 129710050 + ... + 129710211.

Almost surely, 2^21013041141 is an apocalyptic number.

It is an amenable number.

21013041141 is a deficient number, since it is larger than the sum of its proper divisors (10376810561).

21013041141 is an equidigital number, since it uses as much as digits as its factorization.

21013041141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259420273 (or 259420264 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21013041141 its reverse (14114031012), we get a palindrome (35127072153).

The spelling of 21013041141 in words is "twenty-one billion, thirteen million, forty-one thousand, one hundred forty-one".