23211050449 has 2 divisors, whose sum is σ = 23211050450. Its totient is φ = 23211050448.

The previous prime is 23211050441. The next prime is 23211050501. The reversal of 23211050449 is 94405011232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22300942225 + 910108224 = 149335^2 + 30168^2 .

It is a cyclic number.

It is not a de Polignac number, because 23211050449 - 2³ = 23211050441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23211050449.

It is not a weakly prime, because it can be changed into another prime (23211050441) 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, 11605525224 + 11605525225.

It is an arithmetic number, because the mean of its divisors is an integer number (11605525225).

Almost surely, 2^23211050449 is an apocalyptic number.

It is an amenable number.

23211050449 is a deficient number, since it is larger than the sum of its proper divisors (1).

23211050449 is an equidigital number, since it uses as much as digits as its factorization.

23211050449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 23211050449 in words is "twenty-three billion, two hundred eleven million, fifty thousand, four hundred forty-nine".