42531630322513 has 2 divisors, whose sum is σ = 42531630322514. Its totient is φ = 42531630322512.

The previous prime is 42531630322409. The next prime is 42531630322607. The reversal of 42531630322513 is 31522303613524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28732247901009 + 13799382421504 = 5360247^2 + 3714752^2 .

It is a cyclic number.

It is not a de Polignac number, because 42531630322513 - 2²⁵ = 42531596768081 is a prime.

It is not a weakly prime, because it can be changed into another prime (42531630352513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21265815161256 + 21265815161257.

It is an arithmetic number, because the mean of its divisors is an integer number (21265815161257).

Almost surely, 2^{42531630322513} is an apocalyptic number.

It is an amenable number.

42531630322513 is a deficient number, since it is larger than the sum of its proper divisors (1).

42531630322513 is an equidigital number, since it uses as much as digits as its factorization.

42531630322513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 42531630322513 in words is "forty-two trillion, five hundred thirty-one billion, six hundred thirty million, three hundred twenty-two thousand, five hundred thirteen".