111273354340161 has 64 divisors (see below), whose sum is σ = 165205542813696. Its totient is φ = 66156866899200.

The previous prime is 111273354340157. The next prime is 111273354340273. The reversal of 111273354340161 is 161043453372111.

It is not a de Polignac number, because 111273354340161 - 2² = 111273354340157 is a prime.

It is a super-2 number, since 2×111273354340161² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111273354340361) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2310613095 + ... + 2310661251.

It is an arithmetic number, because the mean of its divisors is an integer number (2581336606464).

Almost surely, 2^{111273354340161} is an apocalyptic number.

It is an amenable number.

111273354340161 is a deficient number, since it is larger than the sum of its proper divisors (53932188473535).

111273354340161 is a wasteful number, since it uses less digits than its factorization.

111273354340161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51342.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 111273354340161 in words is "one hundred eleven trillion, two hundred seventy-three billion, three hundred fifty-four million, three hundred forty thousand, one hundred sixty-one".