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130031524321 is a prime number
BaseRepresentation
bin111100100011001111…
…0111001100111100001
3110102122010020211212021
41321012132321213201
54112301032234241
6135422522501441
712252205501666
oct1710636714741
9412563224767
10130031524321
1150167450896
122124b364881
13c35359158a
146417753a6d
1535b09de0d1
hex1e467b99e1

130031524321 has 2 divisors, whose sum is σ = 130031524322. Its totient is φ = 130031524320.

The previous prime is 130031524309. The next prime is 130031524327. The reversal of 130031524321 is 123425130031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125290513296 + 4741011025 = 353964^2 + 68855^2 .

It is a cyclic number.

It is not a de Polignac number, because 130031524321 - 25 = 130031524289 is a prime.

It is a super-2 number, since 2×1300315243212 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (130031524327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65015762160 + 65015762161.

It is an arithmetic number, because the mean of its divisors is an integer number (65015762161).

Almost surely, 2130031524321 is an apocalyptic number.

It is an amenable number.

130031524321 is a deficient number, since it is larger than the sum of its proper divisors (1).

130031524321 is an equidigital number, since it uses as much as digits as its factorization.

130031524321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 130031524321 its reverse (123425130031), we get a palindrome (253456654352).

The spelling of 130031524321 in words is "one hundred thirty billion, thirty-one million, five hundred twenty-four thousand, three hundred twenty-one".