423511624453 has 2 divisors, whose sum is σ = 423511624454. Its totient is φ = 423511624452.

The previous prime is 423511624429. The next prime is 423511624463. The reversal of 423511624453 is 354426115324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 301359277444 + 122152347009 = 548962^2 + 349503^2 .

It is a cyclic number.

It is not a de Polignac number, because 423511624453 - 2⁵ = 423511624421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423511624463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211755812226 + 211755812227.

It is an arithmetic number, because the mean of its divisors is an integer number (211755812227).

Almost surely, 2^423511624453 is an apocalyptic number.

It is an amenable number.

423511624453 is a deficient number, since it is larger than the sum of its proper divisors (1).

423511624453 is an equidigital number, since it uses as much as digits as its factorization.

423511624453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 40.

Adding to 423511624453 its reverse (354426115324), we get a palindrome (777937739777).

The spelling of 423511624453 in words is "four hundred twenty-three billion, five hundred eleven million, six hundred twenty-four thousand, four hundred fifty-three".