13206780311 has 2 divisors, whose sum is σ = 13206780312. Its totient is φ = 13206780310.

The previous prime is 13206780299. The next prime is 13206780331. The reversal of 13206780311 is 11308760231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13206780311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13206780331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6603390155 + 6603390156.

It is an arithmetic number, because the mean of its divisors is an integer number (6603390156).

Almost surely, 2^13206780311 is an apocalyptic number.

13206780311 is a deficient number, since it is larger than the sum of its proper divisors (1).

13206780311 is an equidigital number, since it uses as much as digits as its factorization.

13206780311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 13206780311 in words is "thirteen billion, two hundred six million, seven hundred eighty thousand, three hundred eleven".