31043124043 has 4 divisors (see below), whose sum is σ = 31062419080. Its totient is φ = 31023829008.

The previous prime is 31043124011. The next prime is 31043124071. The reversal of 31043124043 is 34042134013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34042134013 = 1021 ⋅33341953.

It is a cyclic number.

It is not a de Polignac number, because 31043124043 - 2⁵ = 31043124011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31043123999 and 31043124017.

It is not an unprimeable number, because it can be changed into a prime (31043124143) 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, 9645105 + ... + 9648322.

It is an arithmetic number, because the mean of its divisors is an integer number (7765604770).

Almost surely, 2^31043124043 is an apocalyptic number.

31043124043 is a deficient number, since it is larger than the sum of its proper divisors (19295037).

31043124043 is a wasteful number, since it uses less digits than its factorization.

31043124043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19295036.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31043124043 its reverse (34042134013), we get a palindrome (65085258056).

The spelling of 31043124043 in words is "thirty-one billion, forty-three million, one hundred twenty-four thousand, forty-three".