100213130021123 has 4 divisors (see below), whose sum is σ = 114529291452720. Its totient is φ = 85896968589528.

The previous prime is 100213130021047. The next prime is 100213130021171. The reversal of 100213130021123 is 321120031312001.

It is a happy number.

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 100213130021123 - 2⁸ = 100213130020867 is a prime.

It is a super-2 number, since 2×100213130021123² (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 = 100213130021095 and 100213130021104.

It is not an unprimeable number, because it can be changed into a prime (100213130021183) 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, 7158080715788 + ... + 7158080715801.

It is an arithmetic number, because the mean of its divisors is an integer number (28632322863180).

Almost surely, 2^{100213130021123} is an apocalyptic number.

100213130021123 is a deficient number, since it is larger than the sum of its proper divisors (14316161431597).

100213130021123 is an equidigital number, since it uses as much as digits as its factorization.

100213130021123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14316161431596.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 100213130021123 its reverse (321120031312001), we get a palindrome (421333161333124).

The spelling of 100213130021123 in words is "one hundred trillion, two hundred thirteen billion, one hundred thirty million, twenty-one thousand, one hundred twenty-three".