111011020011 has 12 divisors (see below), whose sum is σ = 160459779480. Its totient is φ = 73956333600.

The previous prime is 111011019907. The next prime is 111011020013. The reversal of 111011020011 is 110020110111.

It is not a de Polignac number, because 111011020011 - 2²² = 111006825707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 111011019975 and 111011020002.

It is not an unprimeable number, because it can be changed into a prime (111011020013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4237306 + ... + 4263423.

It is an arithmetic number, because the mean of its divisors is an integer number (13371648290).

Almost surely, 2^111011020011 is an apocalyptic number.

111011020011 is a deficient number, since it is larger than the sum of its proper divisors (49448759469).

111011020011 is a wasteful number, since it uses less digits than its factorization.

111011020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8502186 (or 8502183 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 111011020011 its reverse (110020110111), we get a palindrome (221031130122).

The spelling of 111011020011 in words is "one hundred eleven billion, eleven million, twenty thousand, eleven".