130421243 has 2 divisors, whose sum is σ = 130421244. Its totient is φ = 130421242.

The previous prime is 130421227. The next prime is 130421273. The reversal of 130421243 is 342124031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130421243 - 2⁴ = 130421227 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130421273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65210621 + 65210622.

It is an arithmetic number, because the mean of its divisors is an integer number (65210622).

Almost surely, 2^130421243 is an apocalyptic number.

130421243 is a deficient number, since it is larger than the sum of its proper divisors (1).

130421243 is an equidigital number, since it uses as much as digits as its factorization.

130421243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 130421243 is about 11420.2120383117. The cubic root of 130421243 is about 507.1262739082.

Adding to 130421243 its reverse (342124031), we get a palindrome (472545274).

The spelling of 130421243 in words is "one hundred thirty million, four hundred twenty-one thousand, two hundred forty-three".