12141991543 has 8 divisors (see below), whose sum is σ = 13280762880. Its totient is φ = 11009045880.

The previous prime is 12141991541. The next prime is 12141991577. The reversal of 12141991543 is 34519914121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12141991543 - 2¹ = 12141991541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12141991496 and 12141991505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12141991541) 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 in 7 ways as a sum of consecutive naturals, for example, 1452055 + ... + 1460392.

It is an arithmetic number, because the mean of its divisors is an integer number (1660095360).

Almost surely, 2^12141991543 is an apocalyptic number.

12141991543 is a deficient number, since it is larger than the sum of its proper divisors (1138771337).

12141991543 is a wasteful number, since it uses less digits than its factorization.

12141991543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912837.

The product of its digits is 38880, while the sum is 40.

The spelling of 12141991543 in words is "twelve billion, one hundred forty-one million, nine hundred ninety-one thousand, five hundred forty-three".