12140213543 has 4 divisors (see below), whose sum is σ = 12207286728. Its totient is φ = 12073140360.

The previous prime is 12140213513. The next prime is 12140213581. The reversal of 12140213543 is 34531204121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12140213543 - 2²⁰ = 12139164967 is a prime.

It is a super-2 number, since 2×12140213543² (a number of 21 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 (12140213513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33536321 + ... + 33536682.

It is an arithmetic number, because the mean of its divisors is an integer number (3051821682).

Almost surely, 2^12140213543 is an apocalyptic number.

12140213543 is a deficient number, since it is larger than the sum of its proper divisors (67073185).

12140213543 is an equidigital number, since it uses as much as digits as its factorization.

12140213543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67073184.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 12140213543 its reverse (34531204121), we get a palindrome (46671417664).

The spelling of 12140213543 in words is "twelve billion, one hundred forty million, two hundred thirteen thousand, five hundred forty-three".