2063231105521 has 2 divisors, whose sum is σ = 2063231105522. Its totient is φ = 2063231105520.

The previous prime is 2063231105513. The next prime is 2063231105581. The reversal of 2063231105521 is 1255011323602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2055025463296 + 8205642225 = 1433536^2 + 90585^2 .

It is a cyclic number.

It is not a de Polignac number, because 2063231105521 - 2³ = 2063231105513 is a prime.

It is not a weakly prime, because it can be changed into another prime (2063231105581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1031615552760 + 1031615552761.

It is an arithmetic number, because the mean of its divisors is an integer number (1031615552761).

Almost surely, 2^{2063231105521} is an apocalyptic number.

It is an amenable number.

2063231105521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2063231105521 is an equidigital number, since it uses as much as digits as its factorization.

2063231105521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 2063231105521 in words is "two trillion, sixty-three billion, two hundred thirty-one million, one hundred five thousand, five hundred twenty-one".