1111012011 has 16 divisors (see below), whose sum is σ = 1702701600. Its totient is φ = 715133664.

The previous prime is 1111012003. The next prime is 1111012013. The reversal of 1111012011 is 1102101111.

It is not a de Polignac number, because 1111012011 - 2³ = 1111012003 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 = 1111011984 and 1111012002.

It is not an unprimeable number, because it can be changed into a prime (1111012013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 708676 + ... + 710241.

It is an arithmetic number, because the mean of its divisors is an integer number (106418850).

Almost surely, 2^1111012011 is an apocalyptic number.

1111012011 is a deficient number, since it is larger than the sum of its proper divisors (591689589).

1111012011 is a wasteful number, since it uses less digits than its factorization.

1111012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418955 (or 1418949 counting only the distinct ones).

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

The square root of 1111012011 is about 33331.8467985199. The cubic root of 1111012011 is about 1035.7133750271.

Adding to 1111012011 its reverse (1102101111), we get a palindrome (2213113122).

The spelling of 1111012011 in words is "one billion, one hundred eleven million, twelve thousand, eleven".