111311122120469 has 2 divisors, whose sum is σ = 111311122120470. Its totient is φ = 111311122120468.

The previous prime is 111311122120301. The next prime is 111311122120529. The reversal of 111311122120469 is 964021221113111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75931966071025 + 35379156049444 = 8713895^2 + 5948038^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111311122120469 is a prime.

It is a super-2 number, since 2×111311122120469² (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 (111311122120669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55655561060234 + 55655561060235.

It is an arithmetic number, because the mean of its divisors is an integer number (55655561060235).

Almost surely, 2^{111311122120469} is an apocalyptic number.

It is an amenable number.

111311122120469 is a deficient number, since it is larger than the sum of its proper divisors (1).

111311122120469 is an equidigital number, since it uses as much as digits as its factorization.

111311122120469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 111311122120469 in words is "one hundred eleven trillion, three hundred eleven billion, one hundred twenty-two million, one hundred twenty thousand, four hundred sixty-nine".