1111101223312 has 20 divisors (see below), whose sum is σ = 2176946922060. Its totient is φ = 549308469248.

The previous prime is 1111101223291. The next prime is 1111101223321. The reversal of 1111101223312 is 2133221011111.

It can be written as a sum of positive squares in 2 ways, for example, as 170077059216 + 941024164096 = 412404^2 + 970064^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1111101223312.

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, 390132433 + ... + 390135280.

It is an arithmetic number, because the mean of its divisors is an integer number (108847346103).

Almost surely, 2^{1111101223312} is an apocalyptic number.

It is an amenable number.

1111101223312 is a deficient number, since it is larger than the sum of its proper divisors (1065845698748).

1111101223312 is an equidigital number, since it uses as much as digits as its factorization.

1111101223312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780267810 (or 780267804 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1111101223312 its reverse (2133221011111), we get a palindrome (3244322234423).

The spelling of 1111101223312 in words is "one trillion, one hundred eleven billion, one hundred one million, two hundred twenty-three thousand, three hundred twelve".