11311243134 has 32 divisors (see below), whose sum is σ = 23855575680. Its totient is φ = 3565606752.

The previous prime is 11311243123. The next prime is 11311243159. The reversal of 11311243134 is 43134211311.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23937 + ... + 152300.

It is an arithmetic number, because the mean of its divisors is an integer number (745486740).

Almost surely, 2^11311243134 is an apocalyptic number.

11311243134 is an abundant number, since it is smaller than the sum of its proper divisors (12544332546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11311243134 is a wasteful number, since it uses less digits than its factorization.

11311243134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176824.

The product of its digits is 864, while the sum is 24.

Adding to 11311243134 its reverse (43134211311), we get a palindrome (54445454445).

The spelling of 11311243134 in words is "eleven billion, three hundred eleven million, two hundred forty-three thousand, one hundred thirty-four".