24012421997 has 2 divisors, whose sum is σ = 24012421998. Its totient is φ = 24012421996.

The previous prime is 24012421973. The next prime is 24012422009. The reversal of 24012421997 is 79912421042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23626456681 + 385965316 = 153709^2 + 19646^2 .

It is a cyclic number.

It is not a de Polignac number, because 24012421997 - 2¹² = 24012417901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24012421957) 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, 12006210998 + 12006210999.

It is an arithmetic number, because the mean of its divisors is an integer number (12006210999).

Almost surely, 2^24012421997 is an apocalyptic number.

It is an amenable number.

24012421997 is a deficient number, since it is larger than the sum of its proper divisors (1).

24012421997 is an equidigital number, since it uses as much as digits as its factorization.

24012421997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 24012421997 in words is "twenty-four billion, twelve million, four hundred twenty-one thousand, nine hundred ninety-seven".