12120331273 has 2 divisors, whose sum is σ = 12120331274. Its totient is φ = 12120331272.

The previous prime is 12120331231. The next prime is 12120331331. The reversal of 12120331273 is 37213302121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11166571584 + 953759689 = 105672^2 + 30883^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12120331273 is a prime.

It is not a weakly prime, because it can be changed into another prime (12120361273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060165636 + 6060165637.

It is an arithmetic number, because the mean of its divisors is an integer number (6060165637).

Almost surely, 2^12120331273 is an apocalyptic number.

It is an amenable number.

12120331273 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120331273 is an equidigital number, since it uses as much as digits as its factorization.

12120331273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 12120331273 its reverse (37213302121), we get a palindrome (49333633394).

The spelling of 12120331273 in words is "twelve billion, one hundred twenty million, three hundred thirty-one thousand, two hundred seventy-three".