12043015971 has 16 divisors (see below), whose sum is σ = 18355352064. Its totient is φ = 6880189824.

The previous prime is 12043015967. The next prime is 12043015973. The reversal of 12043015971 is 17951034021.

It is not a de Polignac number, because 12043015971 - 2² = 12043015967 is a prime.

It is a super-2 number, since 2×12043015971² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12043015973) 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 15 ways as a sum of consecutive naturals, for example, 36226 + ... + 159368.

It is an arithmetic number, because the mean of its divisors is an integer number (1147209504).

Almost surely, 2^12043015971 is an apocalyptic number.

12043015971 is a deficient number, since it is larger than the sum of its proper divisors (6312336093).

12043015971 is a wasteful number, since it uses less digits than its factorization.

12043015971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127810.

The product of its (nonzero) digits is 7560, while the sum is 33.

Adding to 12043015971 its reverse (17951034021), we get a palindrome (29994049992).

The spelling of 12043015971 in words is "twelve billion, forty-three million, fifteen thousand, nine hundred seventy-one".