1234321203043 has 2 divisors, whose sum is σ = 1234321203044. Its totient is φ = 1234321203042.

The previous prime is 1234321203019. The next prime is 1234321203097. The reversal of 1234321203043 is 3403021234321.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3403021234321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1234321203043 - 2²⁵ = 1234287648611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1234321503043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617160601521 + 617160601522.

It is an arithmetic number, because the mean of its divisors is an integer number (617160601522).

Almost surely, 2^{1234321203043} is an apocalyptic number.

1234321203043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234321203043 is an equidigital number, since it uses as much as digits as its factorization.

1234321203043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 1234321203043 its reverse (3403021234321), we get a palindrome (4637342437364).

The spelling of 1234321203043 in words is "one trillion, two hundred thirty-four billion, three hundred twenty-one million, two hundred three thousand, forty-three".