43041212131 has 4 divisors (see below), whose sum is σ = 43200036064. Its totient is φ = 42882388200.

The previous prime is 43041212129. The next prime is 43041212147. The reversal of 43041212131 is 13121214034.

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 43041212131 - 2¹ = 43041212129 is a prime.

It is a super-2 number, since 2×43041212131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43041212161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79411560 + ... + 79412101.

It is an arithmetic number, because the mean of its divisors is an integer number (10800009016).

Almost surely, 2^43041212131 is an apocalyptic number.

43041212131 is a deficient number, since it is larger than the sum of its proper divisors (158823933).

43041212131 is a wasteful number, since it uses less digits than its factorization.

43041212131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158823932.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 43041212131 its reverse (13121214034), we get a palindrome (56162426165).

The spelling of 43041212131 in words is "forty-three billion, forty-one million, two hundred twelve thousand, one hundred thirty-one".