12120031004 has 6 divisors (see below), whose sum is σ = 21210054264. Its totient is φ = 6060015500.

The previous prime is 12120031003. The next prime is 12120031009. The reversal of 12120031004 is 40013002121.

It is a self number, because there is not a number n which added to its sum of digits gives 12120031004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120031003) by changing a digit.

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 as a sum of consecutive naturals, namely, 1515003872 + ... + 1515003879.

It is an arithmetic number, because the mean of its divisors is an integer number (3535009044).

Almost surely, 2^12120031004 is an apocalyptic number.

It is an amenable number.

12120031004 is a deficient number, since it is larger than the sum of its proper divisors (9090023260).

12120031004 is a wasteful number, since it uses less digits than its factorization.

12120031004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030007755 (or 3030007753 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12120031004 its reverse (40013002121), we get a palindrome (52133033125).

The spelling of 12120031004 in words is "twelve billion, one hundred twenty million, thirty-one thousand, four".