120434411231917 has 2 divisors, whose sum is σ = 120434411231918. Its totient is φ = 120434411231916.

The previous prime is 120434411231873. The next prime is 120434411231923. The reversal of 120434411231917 is 719132114434021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118264885501156 + 2169525730761 = 10874966^2 + 1472931^2 .

It is a cyclic number.

It is not a de Polignac number, because 120434411231917 - 2⁷ = 120434411231789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120434411231977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60217205615958 + 60217205615959.

It is an arithmetic number, because the mean of its divisors is an integer number (60217205615959).

Almost surely, 2^{120434411231917} is an apocalyptic number.

It is an amenable number.

120434411231917 is a deficient number, since it is larger than the sum of its proper divisors (1).

120434411231917 is an equidigital number, since it uses as much as digits as its factorization.

120434411231917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

Adding to 120434411231917 its reverse (719132114434021), we get a palindrome (839566525665938).

The spelling of 120434411231917 in words is "one hundred twenty trillion, four hundred thirty-four billion, four hundred eleven million, two hundred thirty-one thousand, nine hundred seventeen".