42251203 has 2 divisors, whose sum is σ = 42251204. Its totient is φ = 42251202.

The previous prime is 42251191. The next prime is 42251227. The reversal of 42251203 is 30215224.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42251203 is a prime.

It is not a weakly prime, because it can be changed into another prime (42251303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21125601 + 21125602.

It is an arithmetic number, because the mean of its divisors is an integer number (21125602).

Almost surely, 2^42251203 is an apocalyptic number.

42251203 is a deficient number, since it is larger than the sum of its proper divisors (1).

42251203 is an equidigital number, since it uses as much as digits as its factorization.

42251203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42251203 is about 6500.0925378028. The cubic root of 42251203 is about 348.2942940358.

Adding to 42251203 its reverse (30215224), we get a palindrome (72466427).

The spelling of 42251203 in words is "forty-two million, two hundred fifty-one thousand, two hundred three".