1111111020011 has 8 divisors (see below), whose sum is σ = 1169621451600. Its totient is φ = 1052603678880.

The previous prime is 1111111020007. The next prime is 1111111020023. The reversal of 1111111020011 is 1100201111111.

It is a happy number.

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 1111111020011 - 2² = 1111111020007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111111019974 and 1111111020001.

It is not an unprimeable number, because it can be changed into a prime (1111111020001) 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, 15596 + ... + 1490793.

It is an arithmetic number, because the mean of its divisors is an integer number (146202681450).

Almost surely, 2^{1111111020011} is an apocalyptic number.

1111111020011 is a deficient number, since it is larger than the sum of its proper divisors (58510431589).

1111111020011 is a wasteful number, since it uses less digits than its factorization.

1111111020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545229.

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

Adding to 1111111020011 its reverse (1100201111111), we get a palindrome (2211312131122).

The spelling of 1111111020011 in words is "one trillion, one hundred eleven billion, one hundred eleven million, twenty thousand, eleven".