1213233530543 has 2 divisors, whose sum is σ = 1213233530544. Its totient is φ = 1213233530542.

The previous prime is 1213233530527. The next prime is 1213233530563. The reversal of 1213233530543 is 3450353323121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213233530543 - 2⁴ = 1213233530527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213233530563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606616765271 + 606616765272.

It is an arithmetic number, because the mean of its divisors is an integer number (606616765272).

Almost surely, 2^{1213233530543} is an apocalyptic number.

1213233530543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213233530543 is an equidigital number, since it uses as much as digits as its factorization.

1213233530543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 35.

Adding to 1213233530543 its reverse (3450353323121), we get a palindrome (4663586853664).

The spelling of 1213233530543 in words is "one trillion, two hundred thirteen billion, two hundred thirty-three million, five hundred thirty thousand, five hundred forty-three".