100021112011123 has 8 divisors (see below), whose sum is σ = 105297934633920. Its totient is φ = 94745544745320.

The previous prime is 100021112011039. The next prime is 100021112011141. The reversal of 100021112011123 is 321110211120001.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100021112011123 is a prime.

It is a super-2 number, since 2×100021112011123² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100021112011097 and 100021112011106.

It is not an unprimeable number, because it can be changed into a prime (100021112011153) 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, 313675693 + ... + 313994398.

It is an arithmetic number, because the mean of its divisors is an integer number (13162241829240).

Almost surely, 2^{100021112011123} is an apocalyptic number.

100021112011123 is a deficient number, since it is larger than the sum of its proper divisors (5276822622797).

100021112011123 is an equidigital number, since it uses as much as digits as its factorization.

100021112011123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627678497.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 100021112011123 its reverse (321110211120001), we get a palindrome (421131323131124).

The spelling of 100021112011123 in words is "one hundred trillion, twenty-one billion, one hundred twelve million, eleven thousand, one hundred twenty-three".