12111131002 has 4 divisors (see below), whose sum is σ = 18166696506. Its totient is φ = 6055565500.

The previous prime is 12111130981. The next prime is 12111131017. The reversal of 12111131002 is 20013111121.

It is a happy number.

12111131002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 11892120601 + 219010401 = 109051^2 + 14799^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3027782749 + ... + 3027782752.

Almost surely, 2^12111131002 is an apocalyptic number.

12111131002 is a deficient number, since it is larger than the sum of its proper divisors (6055565504).

12111131002 is an equidigital number, since it uses as much as digits as its factorization.

12111131002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055565503.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12111131002 its reverse (20013111121), we get a palindrome (32124242123).

The spelling of 12111131002 in words is "twelve billion, one hundred eleven million, one hundred thirty-one thousand, two".