21120241459 has 2 divisors, whose sum is σ = 21120241460. Its totient is φ = 21120241458.

The previous prime is 21120241421. The next prime is 21120241517. The reversal of 21120241459 is 95414202112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21120241459 - 2¹¹ = 21120239411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21120241459.

It is not a weakly prime, because it can be changed into another prime (21120241409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10560120729 + 10560120730.

It is an arithmetic number, because the mean of its divisors is an integer number (10560120730).

Almost surely, 2^21120241459 is an apocalyptic number.

21120241459 is a deficient number, since it is larger than the sum of its proper divisors (1).

21120241459 is an equidigital number, since it uses as much as digits as its factorization.

21120241459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 21120241459 in words is "twenty-one billion, one hundred twenty million, two hundred forty-one thousand, four hundred fifty-nine".