111405512145 has 8 divisors (see below), whose sum is σ = 178248819456. Its totient is φ = 59416273136.

The previous prime is 111405512117. The next prime is 111405512161. The reversal of 111405512145 is 541215504111.

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 111405512145 - 2⁶ = 111405512081 is a prime.

It is a super-2 number, since 2×111405512145² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3713517057 + ... + 3713517086.

It is an arithmetic number, because the mean of its divisors is an integer number (22281102432).

Almost surely, 2^111405512145 is an apocalyptic number.

111405512145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111405512145 is a deficient number, since it is larger than the sum of its proper divisors (66843307311).

111405512145 is an equidigital number, since it uses as much as digits as its factorization.

111405512145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7427034151.

The product of its (nonzero) digits is 4000, while the sum is 30.

The spelling of 111405512145 in words is "one hundred eleven billion, four hundred five million, five hundred twelve thousand, one hundred forty-five".