1243113311124 has 18 divisors (see below), whose sum is σ = 3142314203210. Its totient is φ = 414371103696.

The previous prime is 1243113311081. The next prime is 1243113311129. The reversal of 1243113311124 is 4211133113421.

1243113311124 is a `hidden beast` number, since 1 + 2 + 4 + 311 + 331 + 1 + 12 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1174058931600 + 69054379524 = 1083540^2 + 262782^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243113311129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17265462619 + ... + 17265462690.

Almost surely, 2^{1243113311124} is an apocalyptic number.

It is an amenable number.

1243113311124 is an abundant number, since it is smaller than the sum of its proper divisors (1899200892086).

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

1243113311124 is a wasteful number, since it uses less digits than its factorization.

1243113311124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34530925319 (or 34530925314 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

Adding to 1243113311124 its reverse (4211133113421), we get a palindrome (5454246424545).

The spelling of 1243113311124 in words is "one trillion, two hundred forty-three billion, one hundred thirteen million, three hundred eleven thousand, one hundred twenty-four".