1123433871 has 24 divisors (see below), whose sum is σ = 1772993664. Its totient is φ = 619815840.

The previous prime is 1123433837. The next prime is 1123433879. The reversal of 1123433871 is 1783343211.

It is not a de Polignac number, because 1123433871 - 2¹³ = 1123425679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123433879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14145 + ... + 49466.

It is an arithmetic number, because the mean of its divisors is an integer number (73874736).

Almost surely, 2^1123433871 is an apocalyptic number.

1123433871 is a deficient number, since it is larger than the sum of its proper divisors (649559793).

1123433871 is an equidigital number, since it uses as much as digits as its factorization.

1123433871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63679 (or 63650 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 1123433871 is about 33517.6650588910. The cubic root of 1123433871 is about 1039.5590681992.

The spelling of 1123433871 in words is "one billion, one hundred twenty-three million, four hundred thirty-three thousand, eight hundred seventy-one".