1111030021312 has 28 divisors (see below), whose sum is σ = 2334388447800. Its totient is φ = 522837656576.

The previous prime is 1111030021307. The next prime is 1111030021313. The reversal of 1111030021312 is 2131200301111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1111030021313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510582562 + ... + 510584737.

Almost surely, 2^{1111030021312} is an apocalyptic number.

It is an amenable number.

1111030021312 is an abundant number, since it is smaller than the sum of its proper divisors (1223358426488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111030021312 is a wasteful number, since it uses less digits than its factorization.

1111030021312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021167328 (or 1021167318 counting only the distinct ones).

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

Adding to 1111030021312 its reverse (2131200301111), we get a palindrome (3242230322423).

The spelling of 1111030021312 in words is "one trillion, one hundred eleven billion, thirty million, twenty-one thousand, three hundred twelve".