24031423981 has 2 divisors, whose sum is σ = 24031423982. Its totient is φ = 24031423980.

The previous prime is 24031423979. The next prime is 24031424017. The reversal of 24031423981 is 18932413042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12937015081 + 11094408900 = 113741^2 + 105330^2 .

It is a cyclic number.

It is not a de Polignac number, because 24031423981 - 2¹ = 24031423979 is a prime.

It is a super-2 number, since 2×24031423981² (a number of 22 digits) contains 22 as substring.

Together with 24031423979, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 24031423981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24031423901) 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, 12015711990 + 12015711991.

It is an arithmetic number, because the mean of its divisors is an integer number (12015711991).

Almost surely, 2^24031423981 is an apocalyptic number.

It is an amenable number.

24031423981 is a deficient number, since it is larger than the sum of its proper divisors (1).

24031423981 is an equidigital number, since it uses as much as digits as its factorization.

24031423981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 24031423981 in words is "twenty-four billion, thirty-one million, four hundred twenty-three thousand, nine hundred eighty-one".