312011132 has 36 divisors (see below), whose sum is σ = 587895840. Its totient is φ = 144368640.

The previous prime is 312011111. The next prime is 312011137. The reversal of 312011132 is 231110213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312011137) 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, 1294532 + ... + 1294772.

It is an arithmetic number, because the mean of its divisors is an integer number (16330440).

Almost surely, 2^312011132 is an apocalyptic number.

It is an amenable number.

312011132 is a deficient number, since it is larger than the sum of its proper divisors (275884708).

312011132 is a wasteful number, since it uses less digits than its factorization.

312011132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 312011132 is about 17663.8368425436. The cubic root of 312011132 is about 678.2503549526.

Adding to 312011132 its reverse (231110213), we get a palindrome (543121345).

The spelling of 312011132 in words is "three hundred twelve million, eleven thousand, one hundred thirty-two".