11423123404 has 48 divisors (see below), whose sum is σ = 24931904256. Its totient is φ = 4449009600.

The previous prime is 11423123401. The next prime is 11423123417. The reversal of 11423123404 is 40432132411.

It is not an unprimeable number, because it can be changed into a prime (11423123401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1302474 + ... + 1311214.

It is an arithmetic number, because the mean of its divisors is an integer number (519414672).

Almost surely, 2^11423123404 is an apocalyptic number.

11423123404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11423123404 is an abundant number, since it is smaller than the sum of its proper divisors (13508780852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11423123404 is a wasteful number, since it uses less digits than its factorization.

11423123404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13006 (or 13004 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 11423123404 its reverse (40432132411), we get a palindrome (51855255815).

The spelling of 11423123404 in words is "eleven billion, four hundred twenty-three million, one hundred twenty-three thousand, four hundred four".