100312201111 has 2 divisors, whose sum is σ = 100312201112. Its totient is φ = 100312201110.

The previous prime is 100312201109. The next prime is 100312201117. The reversal of 100312201111 is 111102213001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100312201111 - 2¹ = 100312201109 is a prime.

Together with 100312201109, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 100312201091 and 100312201100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100312201117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50156100555 + 50156100556.

It is an arithmetic number, because the mean of its divisors is an integer number (50156100556).

Almost surely, 2^100312201111 is an apocalyptic number.

100312201111 is a deficient number, since it is larger than the sum of its proper divisors (1).

100312201111 is an equidigital number, since it uses as much as digits as its factorization.

100312201111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 100312201111 its reverse (111102213001), we get a palindrome (211414414112).

The spelling of 100312201111 in words is "one hundred billion, three hundred twelve million, two hundred one thousand, one hundred eleven".