42130343 has 2 divisors, whose sum is σ = 42130344. Its totient is φ = 42130342.

The previous prime is 42130339. The next prime is 42130351. The reversal of 42130343 is 34303124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42130343 - 2² = 42130339 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42130303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21065171 + 21065172.

It is an arithmetic number, because the mean of its divisors is an integer number (21065172).

Almost surely, 2^42130343 is an apocalyptic number.

42130343 is a deficient number, since it is larger than the sum of its proper divisors (1).

42130343 is an equidigital number, since it uses as much as digits as its factorization.

42130343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 42130343 is about 6490.7890891632. The cubic root of 42130343 is about 347.9618770719.

Adding to 42130343 its reverse (34303124), we get a palindrome (76433467).

The spelling of 42130343 in words is "forty-two million, one hundred thirty thousand, three hundred forty-three".