120801971 has 2 divisors, whose sum is σ = 120801972. Its totient is φ = 120801970.

The previous prime is 120801917. The next prime is 120801979. The reversal of 120801971 is 179108021.

Together with previous prime (120801917) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (179108021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120801971 is a prime.

It is not a weakly prime, because it can be changed into another prime (120801979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60400985 + 60400986.

It is an arithmetic number, because the mean of its divisors is an integer number (60400986).

Almost surely, 2^120801971 is an apocalyptic number.

120801971 is a deficient number, since it is larger than the sum of its proper divisors (1).

120801971 is an equidigital number, since it uses as much as digits as its factorization.

120801971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 120801971 is about 10990.9949959046. The cubic root of 120801971 is about 494.3387708894.

Adding to 120801971 its reverse (179108021), we get a palindrome (299909992).

The spelling of 120801971 in words is "one hundred twenty million, eight hundred one thousand, nine hundred seventy-one".