100001123004 has 12 divisors (see below), whose sum is σ = 233335953704. Its totient is φ = 33333707664.

The previous prime is 100001122993. The next prime is 100001123009. The reversal of 100001123004 is 400321100001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×100001123004² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 8333426917 = 100001123004 / (1 + 0 + 0 + 0 + 0 + 1 + 1 + 2 + 3 + 0 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001123009) 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, 4166713447 + ... + 4166713470.

Almost surely, 2^100001123004 is an apocalyptic number.

It is an amenable number.

100001123004 is an abundant number, since it is smaller than the sum of its proper divisors (133334830700).

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

100001123004 is a wasteful number, since it uses less digits than its factorization.

100001123004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8333426924 (or 8333426922 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 100001123004 its reverse (400321100001), we get a palindrome (500322223005).

The spelling of 100001123004 in words is "one hundred billion, one million, one hundred twenty-three thousand, four".