1123550403 has 32 divisors (see below), whose sum is σ = 1552358400. Its totient is φ = 722532096.

The previous prime is 1123550401. The next prime is 1123550411. The reversal of 1123550403 is 3040553211.

It is not a de Polignac number, because 1123550403 - 2¹ = 1123550401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1123550401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2746863 + ... + 2747271.

It is an arithmetic number, because the mean of its divisors is an integer number (48511200).

Almost surely, 2^1123550403 is an apocalyptic number.

1123550403 is a deficient number, since it is larger than the sum of its proper divisors (428807997).

1123550403 is a wasteful number, since it uses less digits than its factorization.

1123550403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1123550403 is about 33519.4033807286. The cubic root of 1123550403 is about 1039.5950108900.

The spelling of 1123550403 in words is "one billion, one hundred twenty-three million, five hundred fifty thousand, four hundred three".