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130231212101 is a prime number
BaseRepresentation
bin111100101001001100…
…0101001100001000101
3110110011001000000222222
41321102120221201011
54113203142241401
6135454414502125
712260152016054
oct1712230514105
9413131000888
10130231212101
115025a140211
12212a6204945
13c385a69723
14643609439b
1535c32d5c1b
hex1e52629845

130231212101 has 2 divisors, whose sum is σ = 130231212102. Its totient is φ = 130231212100.

The previous prime is 130231212029. The next prime is 130231212119. The reversal of 130231212101 is 101212132031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127055889601 + 3175322500 = 356449^2 + 56350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130231212101 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 130231212101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130231212131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65115606050 + 65115606051.

It is an arithmetic number, because the mean of its divisors is an integer number (65115606051).

Almost surely, 2130231212101 is an apocalyptic number.

It is an amenable number.

130231212101 is a deficient number, since it is larger than the sum of its proper divisors (1).

130231212101 is an equidigital number, since it uses as much as digits as its factorization.

130231212101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 130231212101 its reverse (101212132031), we get a palindrome (231443344132).

The spelling of 130231212101 in words is "one hundred thirty billion, two hundred thirty-one million, two hundred twelve thousand, one hundred one".