321012132 has 36 divisors (see below), whose sum is σ = 871320240. Its totient is φ = 91717584.

The previous prime is 321012121. The next prime is 321012137. The reversal of 321012132 is 231210123.

It is not an unprimeable number, because it can be changed into a prime (321012137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272382 + ... + 273557.

It is an arithmetic number, because the mean of its divisors is an integer number (24203340).

Almost surely, 2^321012132 is an apocalyptic number.

It is an amenable number.

321012132 is an abundant number, since it is smaller than the sum of its proper divisors (550308108).

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

321012132 is a wasteful number, since it uses less digits than its factorization.

321012132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545960 (or 545951 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 321012132 is about 17916.8114350740. The cubic root of 321012132 is about 684.7107536155.

Adding to 321012132 its reverse (231210123), we get a palindrome (552222255).

The spelling of 321012132 in words is "three hundred twenty-one million, twelve thousand, one hundred thirty-two".