1121111020111 has 8 divisors (see below), whose sum is σ = 1143707371184. Its totient is φ = 1098710308800.

The previous prime is 1121111020109. The next prime is 1121111020121. The reversal of 1121111020111 is 1110201111211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121111020111 - 2¹ = 1121111020109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121111020091 and 1121111020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121111020121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48898365 + ... + 48921286.

It is an arithmetic number, because the mean of its divisors is an integer number (142963421398).

Almost surely, 2^{1121111020111} is an apocalyptic number.

1121111020111 is a deficient number, since it is larger than the sum of its proper divisors (22596351073).

1121111020111 is an equidigital number, since it uses as much as digits as its factorization.

1121111020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97819881.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1121111020111 its reverse (1110201111211), we get a palindrome (2231312131322).

The spelling of 1121111020111 in words is "one trillion, one hundred twenty-one billion, one hundred eleven million, twenty thousand, one hundred eleven".