1420014426521 has 2 divisors, whose sum is σ = 1420014426522. Its totient is φ = 1420014426520.

The previous prime is 1420014426499. The next prime is 1420014426529. The reversal of 1420014426521 is 1256244100241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1040236806400 + 379777620121 = 1019920^2 + 616261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420014426521 - 2¹⁰ = 1420014425497 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420014426529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710007213260 + 710007213261.

It is an arithmetic number, because the mean of its divisors is an integer number (710007213261).

Almost surely, 2^{1420014426521} is an apocalyptic number.

It is an amenable number.

1420014426521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420014426521 is an equidigital number, since it uses as much as digits as its factorization.

1420014426521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 1420014426521 its reverse (1256244100241), we get a palindrome (2676258526762).

The spelling of 1420014426521 in words is "one trillion, four hundred twenty billion, fourteen million, four hundred twenty-six thousand, five hundred twenty-one".