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130231319957 is a prime number
BaseRepresentation
bin111100101001001100…
…1000011110110010101
3110110011001012111221122
41321102121003312111
54113203204214312
6135454421053325
712260152645364
oct1712231036625
9413131174848
10130231319957
115025a204252
12212a6257245
13c385aa684b
1464360c17db
1535c3307b72
hex1e52643d95

130231319957 has 2 divisors, whose sum is σ = 130231319958. Its totient is φ = 130231319956.

The previous prime is 130231319947. The next prime is 130231319971. The reversal of 130231319957 is 759913132031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91454227396 + 38777092561 = 302414^2 + 196919^2 .

It is a cyclic number.

It is not a de Polignac number, because 130231319957 - 210 = 130231318933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130231319927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65115659978 + 65115659979.

It is an arithmetic number, because the mean of its divisors is an integer number (65115659979).

Almost surely, 2130231319957 is an apocalyptic number.

It is an amenable number.

130231319957 is a deficient number, since it is larger than the sum of its proper divisors (1).

130231319957 is an equidigital number, since it uses as much as digits as its factorization.

130231319957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 153090, while the sum is 44.

The spelling of 130231319957 in words is "one hundred thirty billion, two hundred thirty-one million, three hundred nineteen thousand, nine hundred fifty-seven".