133312012 has 12 divisors (see below), whose sum is σ = 233527840. Its totient is φ = 66589776.

The previous prime is 133311991. The next prime is 133312051. The reversal of 133312012 is 210213331.

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, 11883 + ... + 20194.

Almost surely, 2^133312012 is an apocalyptic number.

It is an amenable number.

133312012 is a deficient number, since it is larger than the sum of its proper divisors (100215828).

133312012 is a wasteful number, since it uses less digits than its factorization.

133312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33120 (or 33118 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 133312012 is about 11546.0821060652. The cubic root of 133312012 is about 510.8457222460.

Adding to 133312012 its reverse (210213331), we get a palindrome (343525343).

The spelling of 133312012 in words is "one hundred thirty-three million, three hundred twelve thousand, twelve".