21420130302419 has 2 divisors, whose sum is σ = 21420130302420. Its totient is φ = 21420130302418.

The previous prime is 21420130302413. The next prime is 21420130302491. The reversal of 21420130302419 is 91420303102412.

Together with next prime (21420130302491) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21420130302419 - 2³² = 21415835335123 is a prime.

It is a super-2 number, since 2×21420130302419² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21420130302413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10710065151209 + 10710065151210.

It is an arithmetic number, because the mean of its divisors is an integer number (10710065151210).

Almost surely, 2^{21420130302419} is an apocalyptic number.

21420130302419 is a deficient number, since it is larger than the sum of its proper divisors (1).

21420130302419 is an equidigital number, since it uses as much as digits as its factorization.

21420130302419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 21420130302419 in words is "twenty-one trillion, four hundred twenty billion, one hundred thirty million, three hundred two thousand, four hundred nineteen".