21043141199 has 2 divisors, whose sum is σ = 21043141200. Its totient is φ = 21043141198.

The previous prime is 21043141181. The next prime is 21043141267. The reversal of 21043141199 is 99114134012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21043141199 - 2¹⁶ = 21043075663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21043141109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10521570599 + 10521570600.

It is an arithmetic number, because the mean of its divisors is an integer number (10521570600).

Almost surely, 2^21043141199 is an apocalyptic number.

21043141199 is a deficient number, since it is larger than the sum of its proper divisors (1).

21043141199 is an equidigital number, since it uses as much as digits as its factorization.

21043141199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 21043141199 in words is "twenty-one billion, forty-three million, one hundred forty-one thousand, one hundred ninety-nine".