13530420451 has 2 divisors, whose sum is σ = 13530420452. Its totient is φ = 13530420450.

The previous prime is 13530420433. The next prime is 13530420461. The reversal of 13530420451 is 15402403531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13530420451 - 2¹⁷ = 13530289379 is a prime.

It is not a weakly prime, because it can be changed into another prime (13530420461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765210225 + 6765210226.

It is an arithmetic number, because the mean of its divisors is an integer number (6765210226).

Almost surely, 2^13530420451 is an apocalyptic number.

13530420451 is a deficient number, since it is larger than the sum of its proper divisors (1).

13530420451 is an equidigital number, since it uses as much as digits as its factorization.

13530420451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 13530420451 its reverse (15402403531), we get a palindrome (28932823982).

The spelling of 13530420451 in words is "thirteen billion, five hundred thirty million, four hundred twenty thousand, four hundred fifty-one".