432321012 has 18 divisors (see below), whose sum is σ = 1092811538. Its totient is φ = 144106992.

The previous prime is 432321007. The next prime is 432321017. The reversal of 432321012 is 210123234.

432321012 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (432321007) and next prime (432321017).

It can be written as a sum of positive squares in only one way, i.e., 422549136 + 9771876 = 20556^2 + 3126^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432321017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6004423 + ... + 6004494.

Almost surely, 2^432321012 is an apocalyptic number.

It is an amenable number.

432321012 is an abundant number, since it is smaller than the sum of its proper divisors (660490526).

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

432321012 is a wasteful number, since it uses less digits than its factorization.

432321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12008927 (or 12008922 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 432321012 is about 20792.3306052977. The cubic root of 432321012 is about 756.1398288431.

Adding to 432321012 its reverse (210123234), we get a palindrome (642444246).

It can be divided in two parts, 43232 and 1012, that added together give a palindrome (44244).

The spelling of 432321012 in words is "four hundred thirty-two million, three hundred twenty-one thousand, twelve".