1123688423 has 32 divisors (see below), whose sum is σ = 1418860800. Its totient is φ = 874114560.

The previous prime is 1123688413. The next prime is 1123688441. The reversal of 1123688423 is 3248863211.

It is a happy number.

It is not a de Polignac number, because 1123688423 - 2⁶ = 1123688359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123688413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159428 + ... + 166326.

It is an arithmetic number, because the mean of its divisors is an integer number (44339400).

Almost surely, 2^1123688423 is an apocalyptic number.

1123688423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1123688423 is a deficient number, since it is larger than the sum of its proper divisors (295172377).

1123688423 is a wasteful number, since it uses less digits than its factorization.

1123688423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7007.

The product of its digits is 55296, while the sum is 38.

The square root of 1123688423 is about 33521.4621250327. The cubic root of 1123688423 is about 1039.6375780438.

The spelling of 1123688423 in words is "one billion, one hundred twenty-three million, six hundred eighty-eight thousand, four hundred twenty-three".