421231132 has 12 divisors (see below), whose sum is σ = 842462320. Its totient is φ = 180527616.

The previous prime is 421231123. The next prime is 421231141. The reversal of 421231132 is 231132124.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (421231123) and next prime (421231141).

421231132 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7521957 + ... + 7522012.

Almost surely, 2^421231132 is an apocalyptic number.

It is an amenable number.

421231132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421231132 is a wasteful number, since it uses less digits than its factorization.

421231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15043980 (or 15043978 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 421231132 is about 20523.9160980550. The cubic root of 421231132 is about 749.6182543192.

Adding to 421231132 its reverse (231132124), we get a palindrome (652363256).

It can be divided in two parts, 4212 and 31132, that added together give a square (35344 = 188²).

The spelling of 421231132 in words is "four hundred twenty-one million, two hundred thirty-one thousand, one hundred thirty-two".