1123015563245 has 4 divisors (see below), whose sum is σ = 1347618675900. Its totient is φ = 898412450592.

The previous prime is 1123015563227. The next prime is 1123015563259. The reversal of 1123015563245 is 5423655103211.

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 379361141929 + 743654421316 = 615923^2 + 862354^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123015563245 - 2⁶ = 1123015563181 is a prime.

It is a super-2 number, since 2×1123015563245² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1123015563199 and 1123015563208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112301556320 + ... + 112301556329.

It is an arithmetic number, because the mean of its divisors is an integer number (336904668975).

Almost surely, 2^{1123015563245} is an apocalyptic number.

It is an amenable number.

1123015563245 is a deficient number, since it is larger than the sum of its proper divisors (224603112655).

1123015563245 is an equidigital number, since it uses as much as digits as its factorization.

1123015563245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224603112654.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 1123015563245 in words is "one trillion, one hundred twenty-three billion, fifteen million, five hundred sixty-three thousand, two hundred forty-five".