1111331112123 has 32 divisors (see below), whose sum is σ = 1545445440000. Its totient is φ = 709481590272.

The previous prime is 1111331112119. The next prime is 1111331112149. The reversal of 1111331112123 is 3212111331111.

It is not a de Polignac number, because 1111331112123 - 2² = 1111331112119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111331112123.

It is not an unprimeable number, because it can be changed into a prime (1111331112623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12156298 + ... + 12247376.

It is an arithmetic number, because the mean of its divisors is an integer number (48295170000).

Almost surely, 2^{1111331112123} is an apocalyptic number.

1111331112123 is a deficient number, since it is larger than the sum of its proper divisors (434114327877).

1111331112123 is a wasteful number, since it uses less digits than its factorization.

1111331112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92259.

The product of its digits is 108, while the sum is 21.

Adding to 1111331112123 its reverse (3212111331111), we get a palindrome (4323442443234).

The spelling of 1111331112123 in words is "one trillion, one hundred eleven billion, three hundred thirty-one million, one hundred twelve thousand, one hundred twenty-three".