120124053421 has 2 divisors, whose sum is σ = 120124053422. Its totient is φ = 120124053420.

The previous prime is 120124053383. The next prime is 120124053437. The reversal of 120124053421 is 124350421021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66954150025 + 53169903396 = 258755^2 + 230586^2 .

It is an emirp because it is prime and its reverse (124350421021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120124053421 - 2⁷ = 120124053293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120124053451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60062026710 + 60062026711.

It is an arithmetic number, because the mean of its divisors is an integer number (60062026711).

Almost surely, 2^120124053421 is an apocalyptic number.

It is an amenable number.

120124053421 is a deficient number, since it is larger than the sum of its proper divisors (1).

120124053421 is an equidigital number, since it uses as much as digits as its factorization.

120124053421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 120124053421 its reverse (124350421021), we get a palindrome (244474474442).

The spelling of 120124053421 in words is "one hundred twenty billion, one hundred twenty-four million, fifty-three thousand, four hundred twenty-one".