120671111121523 has 2 divisors, whose sum is σ = 120671111121524. Its totient is φ = 120671111121522.

The previous prime is 120671111121493. The next prime is 120671111121557. The reversal of 120671111121523 is 325121111176021.

It is an a-pointer prime, because the next prime (120671111121557) can be obtained adding 120671111121523 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120671111121523 - 2²⁵ = 120671077567091 is a prime.

It is not a weakly prime, because it can be changed into another prime (120671111121923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60335555560761 + 60335555560762.

It is an arithmetic number, because the mean of its divisors is an integer number (60335555560762).

Almost surely, 2^{120671111121523} is an apocalyptic number.

120671111121523 is a deficient number, since it is larger than the sum of its proper divisors (1).

120671111121523 is an equidigital number, since it uses as much as digits as its factorization.

120671111121523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 34.

Adding to 120671111121523 its reverse (325121111176021), we get a palindrome (445792222297544).

The spelling of 120671111121523 in words is "one hundred twenty trillion, six hundred seventy-one billion, one hundred eleven million, one hundred twenty-one thousand, five hundred twenty-three".