12354544091 has 2 divisors, whose sum is σ = 12354544092. Its totient is φ = 12354544090.

The previous prime is 12354544057. The next prime is 12354544129. The reversal of 12354544091 is 19044545321.

12354544091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (12354544129) can be obtained adding 12354544091 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12354544091 - 2²² = 12350349787 is a prime.

It is not a weakly prime, because it can be changed into another prime (12354544031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6177272045 + 6177272046.

It is an arithmetic number, because the mean of its divisors is an integer number (6177272046).

Almost surely, 2^12354544091 is an apocalyptic number.

12354544091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12354544091 is an equidigital number, since it uses as much as digits as its factorization.

12354544091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 12354544091 in words is "twelve billion, three hundred fifty-four million, five hundred forty-four thousand, ninety-one".