1011121100111 has 6 divisors (see below), whose sum is σ = 1044790065936. Its totient is φ = 978504289500.

The previous prime is 1011121100053. The next prime is 1011121100113. The reversal of 1011121100111 is 1110011211101.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1011121100111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011121100092 and 1011121100101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011121100113) 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 in 5 ways as a sum of consecutive naturals, for example, 526076615 + ... + 526078536.

It is an arithmetic number, because the mean of its divisors is an integer number (174131677656).

Almost surely, 2^{1011121100111} is an apocalyptic number.

1011121100111 is a deficient number, since it is larger than the sum of its proper divisors (33668965825).

1011121100111 is an equidigital number, since it uses as much as digits as its factorization.

1011121100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052155213 (or 1052155182 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 1011121100111 its reverse (1110011211101), we get a palindrome (2121132311212).

The spelling of 1011121100111 in words is "one trillion, eleven billion, one hundred twenty-one million, one hundred thousand, one hundred eleven".