130235765754221 has 2 divisors, whose sum is σ = 130235765754222. Its totient is φ = 130235765754220.

The previous prime is 130235765754203. The next prime is 130235765754319. The reversal of 130235765754221 is 122457567532031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123898916118121 + 6336849636100 = 11130989^2 + 2517310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130235765754221 is a prime.

It is a super-2 number, since 2×130235765754221² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130235765756221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65117882877110 + 65117882877111.

It is an arithmetic number, because the mean of its divisors is an integer number (65117882877111).

Almost surely, 2^{130235765754221} is an apocalyptic number.

It is an amenable number.

130235765754221 is a deficient number, since it is larger than the sum of its proper divisors (1).

130235765754221 is an equidigital number, since it uses as much as digits as its factorization.

130235765754221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584000, while the sum is 53.

The spelling of 130235765754221 in words is "one hundred thirty trillion, two hundred thirty-five billion, seven hundred sixty-five million, seven hundred fifty-four thousand, two hundred twenty-one".