452316223421 has 2 divisors, whose sum is σ = 452316223422. Its totient is φ = 452316223420.

The previous prime is 452316223393. The next prime is 452316223433. The reversal of 452316223421 is 124322613254.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 413013160921 + 39303062500 = 642661^2 + 198250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-452316223421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (452316223621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226158111710 + 226158111711.

It is an arithmetic number, because the mean of its divisors is an integer number (226158111711).

Almost surely, 2^452316223421 is an apocalyptic number.

It is an amenable number.

452316223421 is a deficient number, since it is larger than the sum of its proper divisors (1).

452316223421 is an equidigital number, since it uses as much as digits as its factorization.

452316223421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 35.

Adding to 452316223421 its reverse (124322613254), we get a palindrome (576638836675).

The spelling of 452316223421 in words is "four hundred fifty-two billion, three hundred sixteen million, two hundred twenty-three thousand, four hundred twenty-one".