420351630003 has 16 divisors (see below), whose sum is σ = 631514188800. Its totient is φ = 276287455080.

The previous prime is 420351629963. The next prime is 420351630037. The reversal of 420351630003 is 300036153024.

It is a happy number.

420351630003 is a `hidden beast` number, since 4 + 2 + 0 + 351 + 6 + 300 + 0 + 3 = 666.

It is not a de Polignac number, because 420351630003 - 2¹⁸ = 420351367859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (420351630053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109635963 + ... + 109639796.

It is an arithmetic number, because the mean of its divisors is an integer number (39469636800).

Almost surely, 2^420351630003 is an apocalyptic number.

420351630003 is a deficient number, since it is larger than the sum of its proper divisors (211162558797).

420351630003 is a wasteful number, since it uses less digits than its factorization.

420351630003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219275839 (or 219275833 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 420351630003 its reverse (300036153024), we get a palindrome (720387783027).

The spelling of 420351630003 in words is "four hundred twenty billion, three hundred fifty-one million, six hundred thirty thousand, three".