1012111611 has 24 divisors (see below), whose sum is σ = 1571459904. Its totient is φ = 577740240.

The previous prime is 1012111601. The next prime is 1012111613. The reversal of 1012111611 is 1161112101.

It is not a de Polignac number, because 1012111611 - 2¹⁰ = 1012110587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012111613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162016 + ... + 168146.

It is an arithmetic number, because the mean of its divisors is an integer number (65477496).

Almost surely, 2^1012111611 is an apocalyptic number.

1012111611 is a deficient number, since it is larger than the sum of its proper divisors (559348293).

1012111611 is a wasteful number, since it uses less digits than its factorization.

1012111611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7271 (or 7264 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 15.

The square root of 1012111611 is about 31813.7016236715. The cubic root of 1012111611 is about 1004.0210134462.

Adding to 1012111611 its reverse (1161112101), we get a palindrome (2173223712).

The spelling of 1012111611 in words is "one billion, twelve million, one hundred eleven thousand, six hundred eleven".