12331037 has 4 divisors (see below), whose sum is σ = 12631836. Its totient is φ = 12030240.

The previous prime is 12330991. The next prime is 12331049. The reversal of 12331037 is 73013321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 811801 + 11519236 = 901^2 + 3394^2 .

It is a cyclic number.

It is not a de Polignac number, because 12331037 - 2⁶ = 12330973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150338 + ... + 150419.

It is an arithmetic number, because the mean of its divisors is an integer number (3157959).

Almost surely, 2^12331037 is an apocalyptic number.

It is an amenable number.

12331037 is a deficient number, since it is larger than the sum of its proper divisors (300799).

12331037 is an equidigital number, since it uses as much as digits as its factorization.

12331037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300798.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 12331037 is about 3511.5576315931. The cubic root of 12331037 is about 231.0290187990.

Adding to 12331037 its reverse (73013321), we get a palindrome (85344358).

The spelling of 12331037 in words is "twelve million, three hundred thirty-one thousand, thirty-seven".