12531233122 has 8 divisors (see below), whose sum is σ = 18815481900. Its totient is φ = 6259405824.

The previous prime is 12531233119. The next prime is 12531233147. The reversal of 12531233122 is 22133213521.

It can be written as a sum of positive squares in 2 ways, for example, as 10691766801 + 1839466321 = 103401^2 + 42889^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3102847 + ... + 3106882.

Almost surely, 2^12531233122 is an apocalyptic number.

12531233122 is a deficient number, since it is larger than the sum of its proper divisors (6284248778).

12531233122 is a wasteful number, since it uses less digits than its factorization.

12531233122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6210740.

The product of its digits is 2160, while the sum is 25.

Adding to 12531233122 its reverse (22133213521), we get a palindrome (34664446643).

The spelling of 12531233122 in words is "twelve billion, five hundred thirty-one million, two hundred thirty-three thousand, one hundred twenty-two".