100111021111 has 2 divisors, whose sum is σ = 100111021112. Its totient is φ = 100111021110.

The previous prime is 100111021103. The next prime is 100111021117. The reversal of 100111021111 is 111120111001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100111021111 - 2³ = 100111021103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100111021117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055510555 + 50055510556.

It is an arithmetic number, because the mean of its divisors is an integer number (50055510556).

Almost surely, 2^100111021111 is an apocalyptic number.

100111021111 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111021111 is an equidigital number, since it uses as much as digits as its factorization.

100111021111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 100111021111 its reverse (111120111001), we get a palindrome (211231132112).

The spelling of 100111021111 in words is "one hundred billion, one hundred eleven million, twenty-one thousand, one hundred eleven".