42301213 has 2 divisors, whose sum is σ = 42301214. Its totient is φ = 42301212.

The previous prime is 42301177. The next prime is 42301229. The reversal of 42301213 is 31210324.

It is a happy number.

It is an a-pointer prime, because the next prime (42301229) can be obtained adding 42301213 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40985604 + 1315609 = 6402^2 + 1147^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42301213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42301283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21150606 + 21150607.

It is an arithmetic number, because the mean of its divisors is an integer number (21150607).

Almost surely, 2^42301213 is an apocalyptic number.

It is an amenable number.

42301213 is a deficient number, since it is larger than the sum of its proper divisors (1).

42301213 is an equidigital number, since it uses as much as digits as its factorization.

42301213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 42301213 is about 6503.9382684647. The cubic root of 42301213 is about 348.4316576189.

Adding to 42301213 its reverse (31210324), we get a palindrome (73511537).

The spelling of 42301213 in words is "forty-two million, three hundred one thousand, two hundred thirteen".