451045203313 has 4 divisors (see below), whose sum is σ = 474784424560. Its totient is φ = 427305982068.

The previous prime is 451045203307. The next prime is 451045203331. The reversal of 451045203313 is 313302540154.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313302540154 = 2 ⋅156651270077.

It is a cyclic number.

It is not a de Polignac number, because 451045203313 - 2²¹ = 451043106161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451045203383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11869610595 + ... + 11869610632.

It is an arithmetic number, because the mean of its divisors is an integer number (118696106140).

Almost surely, 2^451045203313 is an apocalyptic number.

It is an amenable number.

451045203313 is a deficient number, since it is larger than the sum of its proper divisors (23739221247).

451045203313 is a wasteful number, since it uses less digits than its factorization.

451045203313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23739221246.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 451045203313 its reverse (313302540154), we get a palindrome (764347743467).

The spelling of 451045203313 in words is "four hundred fifty-one billion, forty-five million, two hundred three thousand, three hundred thirteen".