1234323421243 has 32 divisors (see below), whose sum is σ = 1381012416000. Its totient is φ = 1093841952000.

The previous prime is 1234323421223. The next prime is 1234323421271. The reversal of 1234323421243 is 3421243234321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1234323421243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1234323421199 and 1234323421208.

It is not an unprimeable number, because it can be changed into a prime (1234323421223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20511543 + ... + 20571631.

It is an arithmetic number, because the mean of its divisors is an integer number (43156638000).

Almost surely, 2^{1234323421243} is an apocalyptic number.

1234323421243 is a deficient number, since it is larger than the sum of its proper divisors (146688994757).

1234323421243 is a wasteful number, since it uses less digits than its factorization.

1234323421243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60483.

The product of its digits is 82944, while the sum is 34.

Adding to 1234323421243 its reverse (3421243234321), we get a palindrome (4655566655564).

The spelling of 1234323421243 in words is "one trillion, two hundred thirty-four billion, three hundred twenty-three million, four hundred twenty-one thousand, two hundred forty-three".