12543445155343 has 2 divisors, whose sum is σ = 12543445155344. Its totient is φ = 12543445155342.

The previous prime is 12543445155239. The next prime is 12543445155347. The reversal of 12543445155343 is 34355154434521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12543445155343 - 2¹³ = 12543445147151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12543445155347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6271722577671 + 6271722577672.

It is an arithmetic number, because the mean of its divisors is an integer number (6271722577672).

Almost surely, 2^{12543445155343} is an apocalyptic number.

12543445155343 is a deficient number, since it is larger than the sum of its proper divisors (1).

12543445155343 is an equidigital number, since it uses as much as digits as its factorization.

12543445155343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640000, while the sum is 49.

Adding to 12543445155343 its reverse (34355154434521), we get a palindrome (46898599589864).

The spelling of 12543445155343 in words is "twelve trillion, five hundred forty-three billion, four hundred forty-five million, one hundred fifty-five thousand, three hundred forty-three".