12131002 has 16 divisors (see below), whose sum is σ = 19774440. Its totient is φ = 5548032.

The previous prime is 12130999. The next prime is 12131017. The reversal of 12131002 is 20013121.

It can be written as a sum of positive squares in 4 ways, for example, as 4835601 + 7295401 = 2199^2 + 2701^2 .

It is a super-2 number, since 2×12131002² = 294322419048008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12131002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874 + ... + 5002.

Almost surely, 2^12131002 is an apocalyptic number.

12131002 is a deficient number, since it is larger than the sum of its proper divisors (7643438).

12131002 is a wasteful number, since it uses less digits than its factorization.

12131002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 12131002 is about 3482.9587996415. The cubic root of 12131002 is about 229.7729454291.

Adding to 12131002 its reverse (20013121), we get a palindrome (32144123).

The spelling of 12131002 in words is "twelve million, one hundred thirty-one thousand, two".