1123506023245 has 4 divisors (see below), whose sum is σ = 1348207227900. Its totient is φ = 898804818592.

The previous prime is 1123506023243. The next prime is 1123506023257. The reversal of 1123506023245 is 5423206053211.

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 802409267529 + 321096755716 = 895773^2 + 566654^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123506023245 - 2¹ = 1123506023243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1123506023245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123506023243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112350602320 + ... + 112350602329.

It is an arithmetic number, because the mean of its divisors is an integer number (337051806975).

Almost surely, 2^{1123506023245} is an apocalyptic number.

It is an amenable number.

1123506023245 is a deficient number, since it is larger than the sum of its proper divisors (224701204655).

1123506023245 is an equidigital number, since it uses as much as digits as its factorization.

1123506023245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224701204654.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 1123506023245 in words is "one trillion, one hundred twenty-three billion, five hundred six million, twenty-three thousand, two hundred forty-five".