120857101 has 2 divisors, whose sum is σ = 120857102. Its totient is φ = 120857100.

The previous prime is 120857083. The next prime is 120857117. The reversal of 120857101 is 101758021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115562500 + 5294601 = 10750^2 + 2301^2 .

It is a cyclic number.

It is not a de Polignac number, because 120857101 - 2¹³ = 120848909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120857161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60428550 + 60428551.

It is an arithmetic number, because the mean of its divisors is an integer number (60428551).

Almost surely, 2^120857101 is an apocalyptic number.

It is an amenable number.

120857101 is a deficient number, since it is larger than the sum of its proper divisors (1).

120857101 is an equidigital number, since it uses as much as digits as its factorization.

120857101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 120857101 is about 10993.5026720331. The cubic root of 120857101 is about 494.4139593749.

The spelling of 120857101 in words is "one hundred twenty million, eight hundred fifty-seven thousand, one hundred one".