21000241319 has 2 divisors, whose sum is σ = 21000241320. Its totient is φ = 21000241318.

The previous prime is 21000241307. The next prime is 21000241331. The reversal of 21000241319 is 91314200012.

It is a balanced prime because it is at equal distance from previous prime (21000241307) and next prime (21000241331).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21000241319 is a prime.

It is a super-2 number, since 2×21000241319² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21000241294 and 21000241303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21000240319) 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, 10500120659 + 10500120660.

It is an arithmetic number, because the mean of its divisors is an integer number (10500120660).

Almost surely, 2^21000241319 is an apocalyptic number.

21000241319 is a deficient number, since it is larger than the sum of its proper divisors (1).

21000241319 is an equidigital number, since it uses as much as digits as its factorization.

21000241319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 21000241319 in words is "twenty-one billion, two hundred forty-one thousand, three hundred nineteen".