120671111121571 has 2 divisors, whose sum is σ = 120671111121572. Its totient is φ = 120671111121570.

The previous prime is 120671111121557. The next prime is 120671111121637. The reversal of 120671111121571 is 175121111176021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120671111121571 - 2²⁷ = 120670976903843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120671111121571.

It is not a weakly prime, because it can be changed into another prime (120671111121971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60335555560785 + 60335555560786.

It is an arithmetic number, because the mean of its divisors is an integer number (60335555560786).

Almost surely, 2^{120671111121571} is an apocalyptic number.

120671111121571 is a deficient number, since it is larger than the sum of its proper divisors (1).

120671111121571 is an equidigital number, since it uses as much as digits as its factorization.

120671111121571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 37.

Adding to 120671111121571 its reverse (175121111176021), we get a palindrome (295792222297592).

The spelling of 120671111121571 in words is "one hundred twenty trillion, six hundred seventy-one billion, one hundred eleven million, one hundred twenty-one thousand, five hundred seventy-one".