13043506343 has 24 divisors (see below), whose sum is σ = 16078314672. Its totient is φ = 10514160384.

The previous prime is 13043506331. The next prime is 13043506391. The reversal of 13043506343 is 34360534031.

It is a happy number.

It is not a de Polignac number, because 13043506343 - 2²⁶ = 12976397479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13043506843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1183205 + ... + 1194177.

It is an arithmetic number, because the mean of its divisors is an integer number (669929778).

Almost surely, 2^13043506343 is an apocalyptic number.

13043506343 is a deficient number, since it is larger than the sum of its proper divisors (3034808329).

13043506343 is a wasteful number, since it uses less digits than its factorization.

13043506343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12431 (or 12424 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 32.

The spelling of 13043506343 in words is "thirteen billion, forty-three million, five hundred six thousand, three hundred forty-three".