12131133 has 16 divisors (see below), whose sum is σ = 18614400. Its totient is φ = 6883776.

The previous prime is 12131113. The next prime is 12131159. The reversal of 12131133 is 33113121.

It is not a de Polignac number, because 12131133 - 2⁶ = 12131069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1191 + ... + 5067.

It is an arithmetic number, because the mean of its divisors is an integer number (1163400).

Almost surely, 2^12131133 is an apocalyptic number.

It is an amenable number.

12131133 is a deficient number, since it is larger than the sum of its proper divisors (6483267).

12131133 is a wasteful number, since it uses less digits than its factorization.

12131133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4036.

The product of its digits is 54, while the sum is 15.

The square root of 12131133 is about 3482.9776054405. The cubic root of 12131133 is about 229.7737725152.

Adding to 12131133 its reverse (33113121), we get a palindrome (45244254).

It can be divided in two parts, 1213 and 1133, that added together give a triangular number (2346 = T₆₈).

The spelling of 12131133 in words is "twelve million, one hundred thirty-one thousand, one hundred thirty-three".