21034303420469 has 2 divisors, whose sum is σ = 21034303420470. Its totient is φ = 21034303420468.

The previous prime is 21034303420331. The next prime is 21034303420477. The reversal of 21034303420469 is 96402430343012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16992945062500 + 4041358357969 = 4122250^2 + 2010313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21034303420469 is a prime.

It is a super-2 number, since 2×21034303420469² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21034303470469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10517151710234 + 10517151710235.

It is an arithmetic number, because the mean of its divisors is an integer number (10517151710235).

Almost surely, 2^{21034303420469} is an apocalyptic number.

It is an amenable number.

21034303420469 is a deficient number, since it is larger than the sum of its proper divisors (1).

21034303420469 is an equidigital number, since it uses as much as digits as its factorization.

21034303420469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 41.

The spelling of 21034303420469 in words is "twenty-one trillion, thirty-four billion, three hundred three million, four hundred twenty thousand, four hundred sixty-nine".