120012132301921 has 2 divisors, whose sum is σ = 120012132301922. Its totient is φ = 120012132301920.

The previous prime is 120012132301879. The next prime is 120012132301937. The reversal of 120012132301921 is 129103231210021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66677023360000 + 53335108941921 = 8165600^2 + 7303089^2 .

It is an emirp because it is prime and its reverse (129103231210021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120012132301921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120012132301921.

It is not a weakly prime, because it can be changed into another prime (120012132331921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60006066150960 + 60006066150961.

It is an arithmetic number, because the mean of its divisors is an integer number (60006066150961).

Almost surely, 2^{120012132301921} is an apocalyptic number.

It is an amenable number.

120012132301921 is a deficient number, since it is larger than the sum of its proper divisors (1).

120012132301921 is an equidigital number, since it uses as much as digits as its factorization.

120012132301921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 120012132301921 its reverse (129103231210021), we get a palindrome (249115363511942).

The spelling of 120012132301921 in words is "one hundred twenty trillion, twelve billion, one hundred thirty-two million, three hundred one thousand, nine hundred twenty-one".