421203144303 has 12 divisors (see below), whose sum is σ = 609937052088. Its totient is φ = 280094783760.

The previous prime is 421203144287. The next prime is 421203144331. The reversal of 421203144303 is 303441302124.

421203144303 is a `hidden beast` number, since 4 + 21 + 20 + 314 + 4 + 303 = 666.

It is not a de Polignac number, because 421203144303 - 2⁴ = 421203144287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421203144403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58938933 + ... + 58946078.

It is an arithmetic number, because the mean of its divisors is an integer number (50828087674).

Almost surely, 2^421203144303 is an apocalyptic number.

421203144303 is a deficient number, since it is larger than the sum of its proper divisors (188733907785).

421203144303 is a wasteful number, since it uses less digits than its factorization.

421203144303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117885414 (or 117885411 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 421203144303 its reverse (303441302124), we get a palindrome (724644446427).

The spelling of 421203144303 in words is "four hundred twenty-one billion, two hundred three million, one hundred forty-four thousand, three hundred three".