100123110231 has 8 divisors (see below), whose sum is σ = 133586544000. Its totient is φ = 66704208312.

The previous prime is 100123110203. The next prime is 100123110289. The reversal of 100123110231 is 132011321001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-100123110231 is a prime.

It is a super-2 number, since 2×100123110231² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100123110231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100123130231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11127715 + ... + 11136708.

It is an arithmetic number, because the mean of its divisors is an integer number (16698318000).

Almost surely, 2^100123110231 is an apocalyptic number.

100123110231 is a deficient number, since it is larger than the sum of its proper divisors (33463433769).

100123110231 is a wasteful number, since it uses less digits than its factorization.

100123110231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22265925.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 100123110231 its reverse (132011321001), we get a palindrome (232134431232).

The spelling of 100123110231 in words is "one hundred billion, one hundred twenty-three million, one hundred ten thousand, two hundred thirty-one".