100212321113 has 4 divisors (see below), whose sum is σ = 100375800228. Its totient is φ = 100048842000.

The previous prime is 100212321071. The next prime is 100212321133. The reversal of 100212321113 is 311123212001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14756661529 + 85455659584 = 121477^2 + 292328^2 .

It is a cyclic number.

It is not a de Polignac number, because 100212321113 - 2⁶ = 100212321049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100212321091 and 100212321100.

It is not an unprimeable number, because it can be changed into a prime (100212321133) 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, 81738638 + ... + 81739863.

It is an arithmetic number, because the mean of its divisors is an integer number (25093950057).

Almost surely, 2^100212321113 is an apocalyptic number.

It is an amenable number.

100212321113 is a deficient number, since it is larger than the sum of its proper divisors (163479115).

100212321113 is an equidigital number, since it uses as much as digits as its factorization.

100212321113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163479114.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 100212321113 its reverse (311123212001), we get a palindrome (411335533114).

The spelling of 100212321113 in words is "one hundred billion, two hundred twelve million, three hundred twenty-one thousand, one hundred thirteen".