42511103 has 2 divisors, whose sum is σ = 42511104. Its totient is φ = 42511102.

The previous prime is 42511097. The next prime is 42511121. The reversal of 42511103 is 30111524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42511103 - 2¹⁶ = 42445567 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42511163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21255551 + 21255552.

It is an arithmetic number, because the mean of its divisors is an integer number (21255552).

Almost surely, 2^42511103 is an apocalyptic number.

42511103 is a deficient number, since it is larger than the sum of its proper divisors (1).

42511103 is an equidigital number, since it uses as much as digits as its factorization.

42511103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 42511103 is about 6520.0539108201. The cubic root of 42511103 is about 349.0069894031.

Adding to 42511103 its reverse (30111524), we get a palindrome (72622627).

The spelling of 42511103 in words is "forty-two million, five hundred eleven thousand, one hundred three".