120434055155917 has 2 divisors, whose sum is σ = 120434055155918. Its totient is φ = 120434055155916.

The previous prime is 120434055155903. The next prime is 120434055155923. The reversal of 120434055155917 is 719551550434021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98387076788676 + 22046978367241 = 9919026^2 + 4695421^2 .

It is a cyclic number.

It is not a de Polignac number, because 120434055155917 - 2¹¹ = 120434055153869 is a prime.

It is a super-2 number, since 2×120434055155917² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120434055155977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60217027577958 + 60217027577959.

It is an arithmetic number, because the mean of its divisors is an integer number (60217027577959).

Almost surely, 2^{120434055155917} is an apocalyptic number.

It is an amenable number.

120434055155917 is a deficient number, since it is larger than the sum of its proper divisors (1).

120434055155917 is an equidigital number, since it uses as much as digits as its factorization.

120434055155917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780000, while the sum is 52.

The spelling of 120434055155917 in words is "one hundred twenty trillion, four hundred thirty-four billion, fifty-five million, one hundred fifty-five thousand, nine hundred seventeen".