1200011102111 has 2 divisors, whose sum is σ = 1200011102112. Its totient is φ = 1200011102110.

The previous prime is 1200011102053. The next prime is 1200011102131. The reversal of 1200011102111 is 1112011100021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200011102111 - 2¹⁴ = 1200011085727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200011102092 and 1200011102101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200011102131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600005551055 + 600005551056.

It is an arithmetic number, because the mean of its divisors is an integer number (600005551056).

Almost surely, 2^{1200011102111} is an apocalyptic number.

1200011102111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200011102111 is an equidigital number, since it uses as much as digits as its factorization.

1200011102111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1200011102111 its reverse (1112011100021), we get a palindrome (2312022202132).

The spelling of 1200011102111 in words is "one trillion, two hundred billion, eleven million, one hundred two thousand, one hundred eleven".