180411121117 has 2 divisors, whose sum is σ = 180411121118. Its totient is φ = 180411121116.

The previous prime is 180411121063. The next prime is 180411121153. The reversal of 180411121117 is 711121114081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179766672121 + 644448996 = 423989^2 + 25386^2 .

It is a cyclic number.

It is not a de Polignac number, because 180411121117 - 2¹⁹ = 180410596829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180414121117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90205560558 + 90205560559.

It is an arithmetic number, because the mean of its divisors is an integer number (90205560559).

Almost surely, 2^180411121117 is an apocalyptic number.

It is an amenable number.

180411121117 is a deficient number, since it is larger than the sum of its proper divisors (1).

180411121117 is an equidigital number, since it uses as much as digits as its factorization.

180411121117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 28.

Adding to 180411121117 its reverse (711121114081), we get a palindrome (891532235198).

The spelling of 180411121117 in words is "one hundred eighty billion, four hundred eleven million, one hundred twenty-one thousand, one hundred seventeen".