420376126903 has 2 divisors, whose sum is σ = 420376126904. Its totient is φ = 420376126902.

The previous prime is 420376126867. The next prime is 420376126921. The reversal of 420376126903 is 309621673024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420376126903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420376126903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420376226903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210188063451 + 210188063452.

It is an arithmetic number, because the mean of its divisors is an integer number (210188063452).

Almost surely, 2^420376126903 is an apocalyptic number.

420376126903 is a deficient number, since it is larger than the sum of its proper divisors (1).

420376126903 is an equidigital number, since it uses as much as digits as its factorization.

420376126903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 43.

Adding to 420376126903 its reverse (309621673024), we get a palindrome (729997799927).

The spelling of 420376126903 in words is "four hundred twenty billion, three hundred seventy-six million, one hundred twenty-six thousand, nine hundred three".