1243314431243 has 8 divisors (see below), whose sum is σ = 1252693782912. Its totient is φ = 1233953562816.

The previous prime is 1243314431113. The next prime is 1243314431297. The reversal of 1243314431243 is 3421344133421.

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 1243314431243 - 2²⁶ = 1243247322379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243314431543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4485755 + ... + 4754852.

It is an arithmetic number, because the mean of its divisors is an integer number (156586722864).

Almost surely, 2^{1243314431243} is an apocalyptic number.

1243314431243 is a deficient number, since it is larger than the sum of its proper divisors (9379351669).

1243314431243 is an equidigital number, since it uses as much as digits as its factorization.

1243314431243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9241621.

The product of its digits is 82944, while the sum is 35.

Adding to 1243314431243 its reverse (3421344133421), we get a palindrome (4664658564664).

The spelling of 1243314431243 in words is "one trillion, two hundred forty-three billion, three hundred fourteen million, four hundred thirty-one thousand, two hundred forty-three".