421253114453 has 2 divisors, whose sum is σ = 421253114454. Its totient is φ = 421253114452.

The previous prime is 421253114419. The next prime is 421253114509. The reversal of 421253114453 is 354411352124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 334427420209 + 86825694244 = 578297^2 + 294662^2 .

It is a cyclic number.

It is not a de Polignac number, because 421253114453 - 2⁸ = 421253114197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421253114053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210626557226 + 210626557227.

It is an arithmetic number, because the mean of its divisors is an integer number (210626557227).

Almost surely, 2^421253114453 is an apocalyptic number.

It is an amenable number.

421253114453 is a deficient number, since it is larger than the sum of its proper divisors (1).

421253114453 is an equidigital number, since it uses as much as digits as its factorization.

421253114453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 35.

Adding to 421253114453 its reverse (354411352124), we get a palindrome (775664466577).

The spelling of 421253114453 in words is "four hundred twenty-one billion, two hundred fifty-three million, one hundred fourteen thousand, four hundred fifty-three".