111012313012 has 24 divisors (see below), whose sum is σ = 196434586152. Its totient is φ = 54889488000.

The previous prime is 111012312991. The next prime is 111012313019. The reversal of 111012313012 is 210313210111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 66813978256 + 44198334756 = 258484^2 + 210234^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012313019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164338 + ... + 499030.

It is an arithmetic number, because the mean of its divisors is an integer number (8184774423).

Almost surely, 2^111012313012 is an apocalyptic number.

It is an amenable number.

111012313012 is a deficient number, since it is larger than the sum of its proper divisors (85422273140).

111012313012 is a wasteful number, since it uses less digits than its factorization.

111012313012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335619 (or 335617 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 111012313012 its reverse (210313210111), we get a palindrome (321325523123).

The spelling of 111012313012 in words is "one hundred eleven billion, twelve million, three hundred thirteen thousand, twelve".