312012132 has 96 divisors (see below), whose sum is σ = 774918144. Its totient is φ = 97593600.

The previous prime is 312012079. The next prime is 312012139. The reversal of 312012132 is 231210213.

It is not an unprimeable number, because it can be changed into a prime (312012139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2381707 + ... + 2381837.

It is an arithmetic number, because the mean of its divisors is an integer number (8072064).

Almost surely, 2^312012132 is an apocalyptic number.

It is an amenable number.

312012132 is an abundant number, since it is smaller than the sum of its proper divisors (462906012).

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

312012132 is a wasteful number, since it uses less digits than its factorization.

312012132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 327 counting only the distinct ones).

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

The square root of 312012132 is about 17663.8651489418. The cubic root of 312012132 is about 678.2510795524.

Adding to 312012132 its reverse (231210213), we get a palindrome (543222345).

It can be divided in two parts, 31201 and 2132, that added together give a palindrome (33333).

The spelling of 312012132 in words is "three hundred twelve million, twelve thousand, one hundred thirty-two".