21020541119 has 2 divisors, whose sum is σ = 21020541120. Its totient is φ = 21020541118.

The previous prime is 21020541103. The next prime is 21020541131. The reversal of 21020541119 is 91114502012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21020541119 - 2⁴ = 21020541103 is a prime.

It is a super-2 number, since 2×21020541119² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21020541169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510270559 + 10510270560.

It is an arithmetic number, because the mean of its divisors is an integer number (10510270560).

Almost surely, 2^21020541119 is an apocalyptic number.

21020541119 is a deficient number, since it is larger than the sum of its proper divisors (1).

21020541119 is an equidigital number, since it uses as much as digits as its factorization.

21020541119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

The spelling of 21020541119 in words is "twenty-one billion, twenty million, five hundred forty-one thousand, one hundred nineteen".