31242330043 has 2 divisors, whose sum is σ = 31242330044. Its totient is φ = 31242330042.

The previous prime is 31242330017. The next prime is 31242330047. The reversal of 31242330043 is 34003324213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31242330043 is a prime.

It is not a weakly prime, because it can be changed into another prime (31242330047) 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 as a sum of consecutive naturals, namely, 15621165021 + 15621165022.

It is an arithmetic number, because the mean of its divisors is an integer number (15621165022).

Almost surely, 2^31242330043 is an apocalyptic number.

31242330043 is a deficient number, since it is larger than the sum of its proper divisors (1).

31242330043 is an equidigital number, since it uses as much as digits as its factorization.

31242330043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 31242330043 its reverse (34003324213), we get a palindrome (65245654256).

The spelling of 31242330043 in words is "thirty-one billion, two hundred forty-two million, three hundred thirty thousand, forty-three".