1103845523 has 4 divisors (see below), whose sum is σ = 1204195128. Its totient is φ = 1003495920.

The previous prime is 1103845487. The next prime is 1103845597. The reversal of 1103845523 is 3255483011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103845523 is a prime.

It is a super-4 number, since 4×1103845523⁴ (a number of 37 digits) contains 4444 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 1103845523.

It is not an unprimeable number, because it can be changed into a prime (1103844523) 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, 50174786 + ... + 50174807.

It is an arithmetic number, because the mean of its divisors is an integer number (301048782).

Almost surely, 2^1103845523 is an apocalyptic number.

1103845523 is a deficient number, since it is larger than the sum of its proper divisors (100349605).

1103845523 is a wasteful number, since it uses less digits than its factorization.

1103845523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100349604.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 1103845523 is about 33224.1707646707. The cubic root of 1103845523 is about 1033.4816427318.

The spelling of 1103845523 in words is "one billion, one hundred three million, eight hundred forty-five thousand, five hundred twenty-three".