100131000112123 has 4 divisors (see below), whose sum is σ = 100919433184000. Its totient is φ = 99342567040248.

The previous prime is 100131000112097. The next prime is 100131000112133. The reversal of 100131000112123 is 321211000131001.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100131000112123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100131000112097 and 100131000112106.

It is not an unprimeable number, because it can be changed into a prime (100131000112133) 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, 394216535748 + ... + 394216536001.

It is an arithmetic number, because the mean of its divisors is an integer number (25229858296000).

Almost surely, 2^{100131000112123} is an apocalyptic number.

100131000112123 is a deficient number, since it is larger than the sum of its proper divisors (788433071877).

100131000112123 is an equidigital number, since it uses as much as digits as its factorization.

100131000112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788433071876.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 100131000112123 its reverse (321211000131001), we get a palindrome (421342000243124).

The spelling of 100131000112123 in words is "one hundred trillion, one hundred thirty-one billion, one hundred twelve thousand, one hundred twenty-three".