1244020231343 has 4 divisors (see below), whose sum is σ = 1252970017320. Its totient is φ = 1235070445368.

The previous prime is 1244020231327. The next prime is 1244020231369. The reversal of 1244020231343 is 3431320204421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1244020231343 - 2⁴ = 1244020231327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244020231843) 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 3 ways as a sum of consecutive naturals, for example, 4474892780 + ... + 4474893057.

It is an arithmetic number, because the mean of its divisors is an integer number (313242504330).

Almost surely, 2^{1244020231343} is an apocalyptic number.

1244020231343 is a deficient number, since it is larger than the sum of its proper divisors (8949785977).

1244020231343 is an equidigital number, since it uses as much as digits as its factorization.

1244020231343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8949785976.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 1244020231343 its reverse (3431320204421), we get a palindrome (4675340435764).

The spelling of 1244020231343 in words is "one trillion, two hundred forty-four billion, twenty million, two hundred thirty-one thousand, three hundred forty-three".