100420405003 has 2 divisors, whose sum is σ = 100420405004. Its totient is φ = 100420405002.

The previous prime is 100420404983. The next prime is 100420405073. The reversal of 100420405003 is 300504024001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100420405003 is a prime.

It is not a weakly prime, because it can be changed into another prime (100420405073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50210202501 + 50210202502.

It is an arithmetic number, because the mean of its divisors is an integer number (50210202502).

Almost surely, 2^100420405003 is an apocalyptic number.

100420405003 is a deficient number, since it is larger than the sum of its proper divisors (1).

100420405003 is an equidigital number, since it uses as much as digits as its factorization.

100420405003 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.

Adding to 100420405003 its reverse (300504024001), we get a palindrome (400924429004).

The spelling of 100420405003 in words is "one hundred billion, four hundred twenty million, four hundred five thousand, three".