12101345543 has 8 divisors (see below), whose sum is σ = 13830830112. Its totient is φ = 10372041216.

The previous prime is 12101345521. The next prime is 12101345551. The reversal of 12101345543 is 34554310121.

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 12101345543 - 2²² = 12097151239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101345513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162671 + ... + 225087.

It is an arithmetic number, because the mean of its divisors is an integer number (1728853764).

Almost surely, 2^12101345543 is an apocalyptic number.

12101345543 is a deficient number, since it is larger than the sum of its proper divisors (1729484569).

12101345543 is an equidigital number, since it uses as much as digits as its factorization.

12101345543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90121.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 12101345543 its reverse (34554310121), we get a palindrome (46655655664).

The spelling of 12101345543 in words is "twelve billion, one hundred one million, three hundred forty-five thousand, five hundred forty-three".