111001011011012 has 12 divisors (see below), whose sum is σ = 194285186094636. Its totient is φ = 55490957841120.

The previous prime is 111001011010991. The next prime is 111001011011071. The reversal of 111001011011012 is 210110110100111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 101301125003716 + 9699886007296 = 10064846^2 + 3114464^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111001011010984 and 111001011011002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2386889939 + ... + 2386936442.

It is an arithmetic number, because the mean of its divisors is an integer number (16190432174553).

Almost surely, 2^{111001011011012} is an apocalyptic number.

It is an amenable number.

111001011011012 is a deficient number, since it is larger than the sum of its proper divisors (83284175083624).

111001011011012 is a wasteful number, since it uses less digits than its factorization.

111001011011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773832198 (or 4773832196 counting only the distinct ones).

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

Adding to 111001011011012 its reverse (210110110100111), we get a palindrome (321111121111123).

The spelling of 111001011011012 in words is "one hundred eleven trillion, one billion, eleven million, eleven thousand, twelve".