421132331 has 8 divisors (see below), whose sum is σ = 429542400. Its totient is φ = 412799400.

The previous prime is 421132307. The next prime is 421132333. The reversal of 421132331 is 133231124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421132331 - 2¹⁰ = 421131307 is a prime.

It is a super-2 number, since 2×421132331² = 354704880426987122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421132333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8195 + ... + 30156.

It is an arithmetic number, because the mean of its divisors is an integer number (53692800).

Almost surely, 2^421132331 is an apocalyptic number.

421132331 is a deficient number, since it is larger than the sum of its proper divisors (8410069).

421132331 is a wasteful number, since it uses less digits than its factorization.

421132331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38569.

The product of its digits is 432, while the sum is 20.

The square root of 421132331 is about 20521.5089844777. The cubic root of 421132331 is about 749.5596413481.

Adding to 421132331 its reverse (133231124), we get a palindrome (554363455).

It can be divided in two parts, 42113 and 2331, that added together give a palindrome (44444).

The spelling of 421132331 in words is "four hundred twenty-one million, one hundred thirty-two thousand, three hundred thirty-one".