111211343112111 has 48 divisors (see below), whose sum is σ = 169750130586624. Its totient is φ = 64655519544000.

The previous prime is 111211343112043. The next prime is 111211343112161.

111211343112111 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 111211343112111 - 2²¹ = 111211341014959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111211343112161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57357655 + ... + 59264856.

It is an arithmetic number, because the mean of its divisors is an integer number (3536461053888).

Almost surely, 2^{111211343112111} is an apocalyptic number.

111211343112111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111211343112111 is a deficient number, since it is larger than the sum of its proper divisors (58538787474513).

111211343112111 is a wasteful number, since it uses less digits than its factorization.

111211343112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116622644 (or 116622633 counting only the distinct ones).

The product of its digits is 144, while the sum is 24.

The spelling of 111211343112111 in words is "one hundred eleven trillion, two hundred eleven billion, three hundred forty-three million, one hundred twelve thousand, one hundred eleven".