1211102000111 has 2 divisors, whose sum is σ = 1211102000112. Its totient is φ = 1211102000110.

The previous prime is 1211102000083. The next prime is 1211102000131. The reversal of 1211102000111 is 1110002011121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211102000111 - 2³⁰ = 1210028258287 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1211102000092 and 1211102000101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211102000131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605551000055 + 605551000056.

It is an arithmetic number, because the mean of its divisors is an integer number (605551000056).

Almost surely, 2^{1211102000111} is an apocalyptic number.

1211102000111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211102000111 is an equidigital number, since it uses as much as digits as its factorization.

1211102000111 is an evil number, because the sum of its binary digits is even.

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

Adding to 1211102000111 its reverse (1110002011121), we get a palindrome (2321104011232).

The spelling of 1211102000111 in words is "one trillion, two hundred eleven billion, one hundred two million, one hundred eleven", and thus it is an aban number.