12120311302 has 12 divisors (see below), whose sum is σ = 19983488868. Its totient is φ = 5509232300.

The previous prime is 12120311233. The next prime is 12120311303. The reversal of 12120311302 is 20311302121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120311303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25041724 + ... + 25042207.

It is an arithmetic number, because the mean of its divisors is an integer number (1665290739).

Almost surely, 2^12120311302 is an apocalyptic number.

12120311302 is a deficient number, since it is larger than the sum of its proper divisors (7863177566).

12120311302 is a wasteful number, since it uses less digits than its factorization.

12120311302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50083955 (or 50083944 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12120311302 its reverse (20311302121), we get a palindrome (32431613423).

It can be divided in two parts, 121 and 20311302, that multiplied together give a palindrome (2457667542).

The spelling of 12120311302 in words is "twelve billion, one hundred twenty million, three hundred eleven thousand, three hundred two".