21241522303 has 2 divisors, whose sum is σ = 21241522304. Its totient is φ = 21241522302.

The previous prime is 21241522279. The next prime is 21241522331. The reversal of 21241522303 is 30322514212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21241522303 - 2¹³ = 21241514111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21241522333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10620761151 + 10620761152.

It is an arithmetic number, because the mean of its divisors is an integer number (10620761152).

Almost surely, 2^21241522303 is an apocalyptic number.

21241522303 is a deficient number, since it is larger than the sum of its proper divisors (1).

21241522303 is an equidigital number, since it uses as much as digits as its factorization.

21241522303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The spelling of 21241522303 in words is "twenty-one billion, two hundred forty-one million, five hundred twenty-two thousand, three hundred three".