13043505311 has 2 divisors, whose sum is σ = 13043505312. Its totient is φ = 13043505310.

The previous prime is 13043505287. The next prime is 13043505341. The reversal of 13043505311 is 11350534031.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13043505311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13043505341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6521752655 + 6521752656.

It is an arithmetic number, because the mean of its divisors is an integer number (6521752656).

Almost surely, 2^13043505311 is an apocalyptic number.

13043505311 is a deficient number, since it is larger than the sum of its proper divisors (1).

13043505311 is an equidigital number, since it uses as much as digits as its factorization.

13043505311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 13043505311 in words is "thirteen billion, forty-three million, five hundred five thousand, three hundred eleven".