452021311 has 4 divisors (see below), whose sum is σ = 516595792. Its totient is φ = 387446832.

The previous prime is 452021293. The next prime is 452021333. The reversal of 452021311 is 113120254.

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 452021311 - 2⁹ = 452020799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452021611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32287230 + ... + 32287243.

It is an arithmetic number, because the mean of its divisors is an integer number (129148948).

Almost surely, 2^452021311 is an apocalyptic number.

452021311 is a deficient number, since it is larger than the sum of its proper divisors (64574481).

452021311 is an equidigital number, since it uses as much as digits as its factorization.

452021311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64574480.

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

The square root of 452021311 is about 21260.7928121225. The cubic root of 452021311 is about 767.4550888849.

Adding to 452021311 its reverse (113120254), we get a palindrome (565141565).

The spelling of 452021311 in words is "four hundred fifty-two million, twenty-one thousand, three hundred eleven".