12150111043 has 4 divisors (see below), whose sum is σ = 13885841200. Its totient is φ = 10414380888.

The previous prime is 12150111041. The next prime is 12150111049. The reversal of 12150111043 is 34011105121.

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 12150111043 - 2¹ = 12150111041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12150111043.

It is not an unprimeable number, because it can be changed into a prime (12150111041) 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 3 ways as a sum of consecutive naturals, for example, 867865068 + ... + 867865081.

It is an arithmetic number, because the mean of its divisors is an integer number (3471460300).

Almost surely, 2^12150111043 is an apocalyptic number.

12150111043 is a deficient number, since it is larger than the sum of its proper divisors (1735730157).

12150111043 is an equidigital number, since it uses as much as digits as its factorization.

12150111043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735730156.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 12150111043 its reverse (34011105121), we get a palindrome (46161216164).

The spelling of 12150111043 in words is "twelve billion, one hundred fifty million, one hundred eleven thousand, forty-three".