100311211111 has 2 divisors, whose sum is σ = 100311211112. Its totient is φ = 100311211110.

The previous prime is 100311211103. The next prime is 100311211123. The reversal of 100311211111 is 111112113001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100311211111 - 2³ = 100311211103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100311211091 and 100311211100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100311211141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50155605555 + 50155605556.

It is an arithmetic number, because the mean of its divisors is an integer number (50155605556).

Almost surely, 2^100311211111 is an apocalyptic number.

100311211111 is a deficient number, since it is larger than the sum of its proper divisors (1).

100311211111 is an equidigital number, since it uses as much as digits as its factorization.

100311211111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 100311211111 its reverse (111112113001), we get a palindrome (211423324112).

The spelling of 100311211111 in words is "one hundred billion, three hundred eleven million, two hundred eleven thousand, one hundred eleven".