12301987553 has 2 divisors, whose sum is σ = 12301987554. Its totient is φ = 12301987552.

The previous prime is 12301987549. The next prime is 12301987561. The reversal of 12301987553 is 35578910321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7523307169 + 4778680384 = 86737^2 + 69128^2 .

It is a cyclic number.

It is not a de Polignac number, because 12301987553 - 2² = 12301987549 is a prime.

It is not a weakly prime, because it can be changed into another prime (12301987573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6150993776 + 6150993777.

It is an arithmetic number, because the mean of its divisors is an integer number (6150993777).

Almost surely, 2^12301987553 is an apocalyptic number.

It is an amenable number.

12301987553 is a deficient number, since it is larger than the sum of its proper divisors (1).

12301987553 is an equidigital number, since it uses as much as digits as its factorization.

12301987553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 12301987553 in words is "twelve billion, three hundred one million, nine hundred eighty-seven thousand, five hundred fifty-three".