12105540311 has 2 divisors, whose sum is σ = 12105540312. Its totient is φ = 12105540310.

The previous prime is 12105540301. The next prime is 12105540329. The reversal of 12105540311 is 11304550121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12105540311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12105540301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6052770155 + 6052770156.

It is an arithmetic number, because the mean of its divisors is an integer number (6052770156).

Almost surely, 2^12105540311 is an apocalyptic number.

12105540311 is a deficient number, since it is larger than the sum of its proper divisors (1).

12105540311 is an equidigital number, since it uses as much as digits as its factorization.

12105540311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 23.

The spelling of 12105540311 in words is "twelve billion, one hundred five million, five hundred forty thousand, three hundred eleven".