100112021111123 has 4 divisors (see below), whose sum is σ = 114413738412720. Its totient is φ = 85810303809528.

The previous prime is 100112021111111. The next prime is 100112021111143. The reversal of 100112021111123 is 321111120211001.

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 100112021111123 - 2³⁶ = 100043301634387 is a prime.

It is a super-2 number, since 2×100112021111123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100112021111143) 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, 7150858650788 + ... + 7150858650801.

It is an arithmetic number, because the mean of its divisors is an integer number (28603434603180).

Almost surely, 2^{100112021111123} is an apocalyptic number.

100112021111123 is a deficient number, since it is larger than the sum of its proper divisors (14301717301597).

100112021111123 is an equidigital number, since it uses as much as digits as its factorization.

100112021111123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14301717301596.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 100112021111123 its reverse (321111120211001), we get a palindrome (421223141322124).

The spelling of 100112021111123 in words is "one hundred trillion, one hundred twelve billion, twenty-one million, one hundred eleven thousand, one hundred twenty-three".