12010553521 has 2 divisors, whose sum is σ = 12010553522. Its totient is φ = 12010553520.

The previous prime is 12010553507. The next prime is 12010553549. The reversal of 12010553521 is 12535501021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6935558400 + 5074995121 = 83280^2 + 71239^2 .

It is a cyclic number.

It is not a de Polignac number, because 12010553521 - 2⁷ = 12010553393 is a prime.

It is not a weakly prime, because it can be changed into another prime (12010553921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005276760 + 6005276761.

It is an arithmetic number, because the mean of its divisors is an integer number (6005276761).

Almost surely, 2^12010553521 is an apocalyptic number.

It is an amenable number.

12010553521 is a deficient number, since it is larger than the sum of its proper divisors (1).

12010553521 is an equidigital number, since it uses as much as digits as its factorization.

12010553521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 12010553521 in words is "twelve billion, ten million, five hundred fifty-three thousand, five hundred twenty-one".