1123434411111 has 12 divisors (see below), whose sum is σ = 1682840023592. Its totient is φ = 748956273912.

The previous prime is 1123434411107. The next prime is 1123434411137. The reversal of 1123434411111 is 1111144343211.

1123434411111 is a `hidden beast` number, since 1 + 1 + 234 + 3 + 4 + 411 + 1 + 11 = 666.

It is not a de Polignac number, because 1123434411111 - 2² = 1123434411107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123434411101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2311593196 + ... + 2311593681.

Almost surely, 2^{1123434411111} is an apocalyptic number.

1123434411111 is a deficient number, since it is larger than the sum of its proper divisors (559405612481).

1123434411111 is an frugal number, since it uses more digits than its factorization.

1123434411111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4623186892 (or 4623186880 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

Adding to 1123434411111 its reverse (1111144343211), we get a palindrome (2234578754322).

The spelling of 1123434411111 in words is "one trillion, one hundred twenty-three billion, four hundred thirty-four million, four hundred eleven thousand, one hundred eleven".