12243105131345 has 16 divisors (see below), whose sum is σ = 16970122194048. Its totient is φ = 8380307255040.

The previous prime is 12243105131221. The next prime is 12243105131351. The reversal of 12243105131345 is 54313150134221.

12243105131345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12243105131345 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6547114109 + ... + 6547115978.

It is an arithmetic number, because the mean of its divisors is an integer number (1060632637128).

Almost surely, 2^{12243105131345} is an apocalyptic number.

It is an amenable number.

12243105131345 is a deficient number, since it is larger than the sum of its proper divisors (4727017062703).

12243105131345 is a wasteful number, since it uses less digits than its factorization.

12243105131345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13094230120.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 12243105131345 its reverse (54313150134221), we get a palindrome (66556255265566).

The spelling of 12243105131345 in words is "twelve trillion, two hundred forty-three billion, one hundred five million, one hundred thirty-one thousand, three hundred forty-five".