111106671145 has 8 divisors (see below), whose sum is σ = 133353322056. Its totient is φ = 88868459136.

The previous prime is 111106671133. The next prime is 111106671157. The reversal of 111106671145 is 541176601111.

It is an interprime number because it is at equal distance from previous prime (111106671133) and next prime (111106671157).

It can be written as a sum of positive squares in 4 ways, for example, as 14922332649 + 96184338496 = 122157^2 + 310136^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111106671145 - 2¹⁹ = 111106146857 is a prime.

It is a super-2 number, since 2×111106671145² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111106671145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2080722 + ... + 2133451.

It is an arithmetic number, because the mean of its divisors is an integer number (16669165257).

Almost surely, 2^111106671145 is an apocalyptic number.

It is an amenable number.

111106671145 is a deficient number, since it is larger than the sum of its proper divisors (22246650911).

111106671145 is an equidigital number, since it uses as much as digits as its factorization.

111106671145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4219451.

The product of its (nonzero) digits is 5040, while the sum is 34.

The spelling of 111106671145 in words is "one hundred eleven billion, one hundred six million, six hundred seventy-one thousand, one hundred forty-five".