1243104243311 has 32 divisors (see below), whose sum is σ = 1482230550528. Its totient is φ = 1020107934720.

The previous prime is 1243104243281. The next prime is 1243104243313. The reversal of 1243104243311 is 1133424013421.

It is not a de Polignac number, because 1243104243311 - 2¹⁴ = 1243104226927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243104243313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59831921 + ... + 59852693.

It is an arithmetic number, because the mean of its divisors is an integer number (46319704704).

Almost surely, 2^{1243104243311} is an apocalyptic number.

1243104243311 is a deficient number, since it is larger than the sum of its proper divisors (239126307217).

1243104243311 is a wasteful number, since it uses less digits than its factorization.

1243104243311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23751.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 1243104243311 its reverse (1133424013421), we get a palindrome (2376528256732).

The spelling of 1243104243311 in words is "one trillion, two hundred forty-three billion, one hundred four million, two hundred forty-three thousand, three hundred eleven".