451043011 has 4 divisors (see below), whose sum is σ = 456111000. Its totient is φ = 445975024.

The previous prime is 451042979. The next prime is 451043029. The reversal of 451043011 is 110340154.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 451043011 - 2⁵ = 451042979 is a prime.

It is a super-2 number, since 2×451043011² = 406879595543892242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 451043011.

It is not an unprimeable number, because it can be changed into a prime (451041011) 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, 2533861 + ... + 2534038.

It is an arithmetic number, because the mean of its divisors is an integer number (114027750).

Almost surely, 2^451043011 is an apocalyptic number.

451043011 is a deficient number, since it is larger than the sum of its proper divisors (5067989).

451043011 is an equidigital number, since it uses as much as digits as its factorization.

451043011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5067988.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 451043011 is about 21237.7732118977. The cubic root of 451043011 is about 766.9010267975.

Adding to 451043011 its reverse (110340154), we get a palindrome (561383165).

The spelling of 451043011 in words is "four hundred fifty-one million, forty-three thousand, eleven".