1011102020111 has 4 divisors (see below), whose sum is σ = 1011217834824. Its totient is φ = 1010986205400.

The previous prime is 1011102020069. The next prime is 1011102020119. The reversal of 1011102020111 is 1110202011101.

1011102020111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011102020111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011102020092 and 1011102020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011102020119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57894260 + ... + 57911721.

It is an arithmetic number, because the mean of its divisors is an integer number (252804458706).

Almost surely, 2^{1011102020111} is an apocalyptic number.

1011102020111 is a deficient number, since it is larger than the sum of its proper divisors (115814713).

1011102020111 is an equidigital number, since it uses as much as digits as its factorization.

1011102020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115814712.

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

Adding to 1011102020111 its reverse (1110202011101), we get a palindrome (2121304031212).

The spelling of 1011102020111 in words is "one trillion, eleven billion, one hundred two million, twenty thousand, one hundred eleven".