42102412903 has 2 divisors, whose sum is σ = 42102412904. Its totient is φ = 42102412902.

The previous prime is 42102412843. The next prime is 42102413057. The reversal of 42102412903 is 30921420124.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42102412903 is a prime.

It is a super-3 number, since 3×42102412903³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42102412103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21051206451 + 21051206452.

It is an arithmetic number, because the mean of its divisors is an integer number (21051206452).

Almost surely, 2^42102412903 is an apocalyptic number.

42102412903 is a deficient number, since it is larger than the sum of its proper divisors (1).

42102412903 is an equidigital number, since it uses as much as digits as its factorization.

42102412903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 42102412903 in words is "forty-two billion, one hundred two million, four hundred twelve thousand, nine hundred three".