1113212123111 has 6 divisors (see below), whose sum is σ = 1223613325536. Its totient is φ = 1012011020900.

The previous prime is 1113212123083. The next prime is 1113212123129.

1113212123111 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1113212123111 - 2³⁰ = 1112138381287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113212123131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4600049975 + ... + 4600050216.

It is an arithmetic number, because the mean of its divisors is an integer number (203935554256).

Almost surely, 2^{1113212123111} is an apocalyptic number.

1113212123111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1113212123111 is a deficient number, since it is larger than the sum of its proper divisors (110401202425).

1113212123111 is an equidigital number, since it uses as much as digits as its factorization.

1113212123111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9200100213 (or 9200100202 counting only the distinct ones).

The product of its digits is 72, while the sum is 20.

The spelling of 1113212123111 in words is "one trillion, one hundred thirteen billion, two hundred twelve million, one hundred twenty-three thousand, one hundred eleven".