100012231123 has 8 divisors (see below), whose sum is σ = 121023204192. Its totient is φ = 80682135936.

The previous prime is 100012231091. The next prime is 100012231129. The reversal of 100012231123 is 321132210001.

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

It is a cyclic number.

It is not a de Polignac number, because 100012231123 - 2⁵ = 100012231091 is a prime.

It is a super-2 number, since 2×100012231123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100012231097 and 100012231106.

It is not an unprimeable number, because it can be changed into a prime (100012231129) 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, 420219340 + ... + 420219577.

It is an arithmetic number, because the mean of its divisors is an integer number (15127900524).

Almost surely, 2^100012231123 is an apocalyptic number.

100012231123 is a deficient number, since it is larger than the sum of its proper divisors (21010973069).

100012231123 is an equidigital number, since it uses as much as digits as its factorization.

100012231123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840438941.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 100012231123 its reverse (321132210001), we get a palindrome (421144441124).

The spelling of 100012231123 in words is "one hundred billion, twelve million, two hundred thirty-one thousand, one hundred twenty-three".