1111128501845 has 4 divisors (see below), whose sum is σ = 1333354202220. Its totient is φ = 888902801472.

The previous prime is 1111128501823. The next prime is 1111128501851. The reversal of 1111128501845 is 5481058211111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 488050343236 + 623078158609 = 698606^2 + 789353^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111128501845 - 2²⁰ = 1111127453269 is a prime.

It is a super-2 number, since 2×1111128501845² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1111128501799 and 1111128501808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111112850180 + ... + 111112850189.

It is an arithmetic number, because the mean of its divisors is an integer number (333338550555).

Almost surely, 2^{1111128501845} is an apocalyptic number.

It is an amenable number.

1111128501845 is a deficient number, since it is larger than the sum of its proper divisors (222225700375).

1111128501845 is an equidigital number, since it uses as much as digits as its factorization.

1111128501845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222225700374.

The product of its (nonzero) digits is 12800, while the sum is 38.

The spelling of 1111128501845 in words is "one trillion, one hundred eleven billion, one hundred twenty-eight million, five hundred one thousand, eight hundred forty-five".