451243013443 has 2 divisors, whose sum is σ = 451243013444. Its totient is φ = 451243013442.

The previous prime is 451243013411. The next prime is 451243013447. The reversal of 451243013443 is 344310342154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 451243013443 - 2⁵ = 451243013411 is a prime.

It is a super-2 number, since 2×451243013443² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 451243013399 and 451243013408.

It is not a weakly prime, because it can be changed into another prime (451243013447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225621506721 + 225621506722.

It is an arithmetic number, because the mean of its divisors is an integer number (225621506722).

Almost surely, 2^451243013443 is an apocalyptic number.

451243013443 is a deficient number, since it is larger than the sum of its proper divisors (1).

451243013443 is an equidigital number, since it uses as much as digits as its factorization.

451243013443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 451243013443 its reverse (344310342154), we get a palindrome (795553355597).

The spelling of 451243013443 in words is "four hundred fifty-one billion, two hundred forty-three million, thirteen thousand, four hundred forty-three".