1311123024111 has 8 divisors (see below), whose sum is σ = 1751956146864. Its totient is φ = 872185958720.

The previous prime is 1311123024097. The next prime is 1311123024143. The reversal of 1311123024111 is 1114203211131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311123024111 - 2⁶ = 1311123024047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311123024811) 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 7 ways as a sum of consecutive naturals, for example, 474012726 + ... + 474015491.

It is an arithmetic number, because the mean of its divisors is an integer number (218994518358).

Almost surely, 2^{1311123024111} is an apocalyptic number.

1311123024111 is a deficient number, since it is larger than the sum of its proper divisors (440833122753).

1311123024111 is an equidigital number, since it uses as much as digits as its factorization.

1311123024111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948028681.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 1311123024111 its reverse (1114203211131), we get a palindrome (2425326235242).

The spelling of 1311123024111 in words is "one trillion, three hundred eleven billion, one hundred twenty-three million, twenty-four thousand, one hundred eleven".