120111457 has 2 divisors, whose sum is σ = 120111458. Its totient is φ = 120111456.

The previous prime is 120111389. The next prime is 120111473. The reversal of 120111457 is 754111021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93392896 + 26718561 = 9664^2 + 5169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120111457 is a prime.

It is not a weakly prime, because it can be changed into another prime (120111487) 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, 60055728 + 60055729.

It is an arithmetic number, because the mean of its divisors is an integer number (60055729).

Almost surely, 2^120111457 is an apocalyptic number.

It is an amenable number.

120111457 is a deficient number, since it is larger than the sum of its proper divisors (1).

120111457 is an equidigital number, since it uses as much as digits as its factorization.

120111457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 120111457 is about 10959.5372621293. The cubic root of 120111457 is about 493.3950768330.

Adding to 120111457 its reverse (754111021), we get a palindrome (874222478).

The spelling of 120111457 in words is "one hundred twenty million, one hundred eleven thousand, four hundred fifty-seven".