5424210402421 has 2 divisors, whose sum is σ = 5424210402422. Its totient is φ = 5424210402420.

The previous prime is 5424210402371. The next prime is 5424210402461. The reversal of 5424210402421 is 1242040124245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5023380864100 + 400829538321 = 2241290^2 + 633111^2 .

It is a cyclic number.

It is not a de Polignac number, because 5424210402421 - 2²⁵ = 5424176847989 is a prime.

It is a super-2 number, since 2×5424210402421² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5424210402461) 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, 2712105201210 + 2712105201211.

It is an arithmetic number, because the mean of its divisors is an integer number (2712105201211).

Almost surely, 2^{5424210402421} is an apocalyptic number.

It is an amenable number.

5424210402421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5424210402421 is an equidigital number, since it uses as much as digits as its factorization.

5424210402421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 5424210402421 its reverse (1242040124245), we get a palindrome (6666250526666).

The spelling of 5424210402421 in words is "five trillion, four hundred twenty-four billion, two hundred ten million, four hundred two thousand, four hundred twenty-one".