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130221031313 is a prime number
BaseRepresentation
bin111100101000111000…
…1110011111110010001
3110110010022211210120202
41321101301303332101
54113143041000223
6135453412344545
712256666334342
oct1712161637621
9413108753522
10130221031313
115025441723a
12212a2915155
13c3839137a9
1464349a40c9
1535c2474428
hex1e51c73f91

130221031313 has 2 divisors, whose sum is σ = 130221031314. Its totient is φ = 130221031312.

The previous prime is 130221031307. The next prime is 130221031331. The reversal of 130221031313 is 313130122031.

Together with next prime (130221031331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130193237329 + 27793984 = 360823^2 + 5272^2 .

It is a cyclic number.

It is not a de Polignac number, because 130221031313 - 26 = 130221031249 is a prime.

It is not a weakly prime, because it can be changed into another prime (130221031363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65110515656 + 65110515657.

It is an arithmetic number, because the mean of its divisors is an integer number (65110515657).

Almost surely, 2130221031313 is an apocalyptic number.

It is an amenable number.

130221031313 is a deficient number, since it is larger than the sum of its proper divisors (1).

130221031313 is an equidigital number, since it uses as much as digits as its factorization.

130221031313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 130221031313 its reverse (313130122031), we get a palindrome (443351153344).

The spelling of 130221031313 in words is "one hundred thirty billion, two hundred twenty-one million, thirty-one thousand, three hundred thirteen".