1111616011 has 16 divisors (see below), whose sum is σ = 1275429888. Its totient is φ = 959493600.

The previous prime is 1111616003. The next prime is 1111616017. The reversal of 1111616011 is 1106161111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1111616011 - 2³ = 1111616003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1111616011.

It is not an unprimeable number, because it can be changed into a prime (1111616017) 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, 12681 + ... + 48826.

It is an arithmetic number, because the mean of its divisors is an integer number (79714368).

Almost surely, 2^1111616011 is an apocalyptic number.

1111616011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1111616011 is a deficient number, since it is larger than the sum of its proper divisors (163813877).

1111616011 is a wasteful number, since it uses less digits than its factorization.

1111616011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61602.

The product of its (nonzero) digits is 36, while the sum is 19.

The square root of 1111616011 is about 33340.9059714939. The cubic root of 1111616011 is about 1035.9010290287.

Adding to 1111616011 its reverse (1106161111), we get a palindrome (2217777122).

The spelling of 1111616011 in words is "one billion, one hundred eleven million, six hundred sixteen thousand, eleven".