24221001913 has 2 divisors, whose sum is σ = 24221001914. Its totient is φ = 24221001912.

The previous prime is 24221001911. The next prime is 24221001941. The reversal of 24221001913 is 31910012242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24210426409 + 10575504 = 155597^2 + 3252^2 .

It is a cyclic number.

It is not a de Polignac number, because 24221001913 - 2¹ = 24221001911 is a prime.

Together with 24221001911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (24221001911) 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, 12110500956 + 12110500957.

It is an arithmetic number, because the mean of its divisors is an integer number (12110500957).

Almost surely, 2^24221001913 is an apocalyptic number.

It is an amenable number.

24221001913 is a deficient number, since it is larger than the sum of its proper divisors (1).

24221001913 is an equidigital number, since it uses as much as digits as its factorization.

24221001913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 24221001913 in words is "twenty-four billion, two hundred twenty-one million, one thousand, nine hundred thirteen".