421131332 has 12 divisors (see below), whose sum is σ = 738051216. Its totient is φ = 210259560.

The previous prime is 421131307. The next prime is 421131341. The reversal of 421131332 is 233131124.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73418 + ... + 78945.

It is an arithmetic number, because the mean of its divisors is an integer number (61504268).

Almost surely, 2^421131332 is an apocalyptic number.

It is an amenable number.

421131332 is a deficient number, since it is larger than the sum of its proper divisors (316919884).

421131332 is a wasteful number, since it uses less digits than its factorization.

421131332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153058 (or 153056 counting only the distinct ones).

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

The square root of 421131332 is about 20521.4846441479. The cubic root of 421131332 is about 749.5590486519.

Adding to 421131332 its reverse (233131124), we get a palindrome (654262456).

The spelling of 421131332 in words is "four hundred twenty-one million, one hundred thirty-one thousand, three hundred thirty-two".