450211331 has 4 divisors (see below), whose sum is σ = 450553464. Its totient is φ = 449869200.

The previous prime is 450211319. The next prime is 450211337. The reversal of 450211331 is 133112054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133112054 = 2 ⋅66556027.

It is a cyclic number.

It is not a de Polignac number, because 450211331 - 2¹⁸ = 449949187 is a prime.

It is a super-2 number, since 2×450211331² = 405380485121583122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450211337) 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, 169085 + ... + 171726.

It is an arithmetic number, because the mean of its divisors is an integer number (112638366).

Almost surely, 2^450211331 is an apocalyptic number.

450211331 is a deficient number, since it is larger than the sum of its proper divisors (342133).

450211331 is a wasteful number, since it uses less digits than its factorization.

450211331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342132.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 450211331 is about 21218.1839703590. The cubic root of 450211331 is about 766.4293728337.

Adding to 450211331 its reverse (133112054), we get a palindrome (583323385).

The spelling of 450211331 in words is "four hundred fifty million, two hundred eleven thousand, three hundred thirty-one".