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130423213 is a prime number
BaseRepresentation
bin1111100011000…
…01100110101101
3100002102012000101
413301201212231
5231342020323
620535231101
73142402414
oct761414655
9302365011
10130423213
1167690988
1237818491
13210362cb
141347047b
15b6b3dad
hex7c619ad

130423213 has 2 divisors, whose sum is σ = 130423214. Its totient is φ = 130423212.

The previous prime is 130423211. The next prime is 130423229. The reversal of 130423213 is 312324031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114447204 + 15976009 = 10698^2 + 3997^2 .

It is an emirp because it is prime and its reverse (312324031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130423213 - 21 = 130423211 is a prime.

Together with 130423211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130423211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65211606 + 65211607.

It is an arithmetic number, because the mean of its divisors is an integer number (65211607).

Almost surely, 2130423213 is an apocalyptic number.

It is an amenable number.

130423213 is a deficient number, since it is larger than the sum of its proper divisors (1).

130423213 is an equidigital number, since it uses as much as digits as its factorization.

130423213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 130423213 is about 11420.2982885737. The cubic root of 130423213 is about 507.1288272594.

Adding to 130423213 its reverse (312324031), we get a palindrome (442747244).

The spelling of 130423213 in words is "one hundred thirty million, four hundred twenty-three thousand, two hundred thirteen".