12235344543781 has 16 divisors (see below), whose sum is σ = 12707197871104. Its totient is φ = 11772017866224.

The previous prime is 12235344543701. The next prime is 12235344543787. The reversal of 12235344543781 is 18734544353221.

It is a cyclic number.

It is not a de Polignac number, because 12235344543781 - 2⁹ = 12235344543269 is a prime.

It is a super-2 number, since 2×12235344543781² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12235344543787) 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 in 15 ways as a sum of consecutive naturals, for example, 110249386 + ... + 110360308.

It is an arithmetic number, because the mean of its divisors is an integer number (794199866944).

Almost surely, 2^{12235344543781} is an apocalyptic number.

It is an amenable number.

12235344543781 is a deficient number, since it is larger than the sum of its proper divisors (471853327323).

12235344543781 is a wasteful number, since it uses less digits than its factorization.

12235344543781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149320.

The product of its digits is 9676800, while the sum is 52.

The spelling of 12235344543781 in words is "twelve trillion, two hundred thirty-five billion, three hundred forty-four million, five hundred forty-three thousand, seven hundred eighty-one".