451313442523 has 2 divisors, whose sum is σ = 451313442524. Its totient is φ = 451313442522.

The previous prime is 451313442493. The next prime is 451313442551. The reversal of 451313442523 is 325244313154.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451313442523 is a prime.

It is a super-2 number, since 2×451313442523² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (451313442553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225656721261 + 225656721262.

It is an arithmetic number, because the mean of its divisors is an integer number (225656721262).

Almost surely, 2^451313442523 is an apocalyptic number.

451313442523 is a deficient number, since it is larger than the sum of its proper divisors (1).

451313442523 is an equidigital number, since it uses as much as digits as its factorization.

451313442523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 37.

Adding to 451313442523 its reverse (325244313154), we get a palindrome (776557755677).

The spelling of 451313442523 in words is "four hundred fifty-one billion, three hundred thirteen million, four hundred forty-two thousand, five hundred twenty-three".