100001123044123 has 4 divisors (see below), whose sum is σ = 114286997764720. Its totient is φ = 85715248323528.

The previous prime is 100001123044117. The next prime is 100001123044157. The reversal of 100001123044123 is 321440321100001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100001123044123 - 2⁴⁵ = 64816750955291 is a prime.

It is a super-2 number, since 2×100001123044123² (a number of 29 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 = 100001123044094 and 100001123044103.

It is not an unprimeable number, because it can be changed into a prime (100001123047123) 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, 7142937360288 + ... + 7142937360301.

It is an arithmetic number, because the mean of its divisors is an integer number (28571749441180).

Almost surely, 2^{100001123044123} is an apocalyptic number.

100001123044123 is a deficient number, since it is larger than the sum of its proper divisors (14285874720597).

100001123044123 is an equidigital number, since it uses as much as digits as its factorization.

100001123044123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14285874720596.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 100001123044123 its reverse (321440321100001), we get a palindrome (421441444144124).

The spelling of 100001123044123 in words is "one hundred trillion, one billion, one hundred twenty-three million, forty-four thousand, one hundred twenty-three".