1210420421203 has 8 divisors (see below), whose sum is σ = 1415508267008. Its totient is φ = 1013375236104.

The previous prime is 1210420421087. The next prime is 1210420421239. The reversal of 1210420421203 is 3021240240121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1210420421203 - 2³³ = 1201830486611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210420421303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2010664851 + ... + 2010665452.

It is an arithmetic number, because the mean of its divisors is an integer number (176938533376).

Almost surely, 2^{1210420421203} is an apocalyptic number.

1210420421203 is a deficient number, since it is larger than the sum of its proper divisors (205087845805).

1210420421203 is an equidigital number, since it uses as much as digits as its factorization.

1210420421203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021330353.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1210420421203 its reverse (3021240240121), we get a palindrome (4231660661324).

The spelling of 1210420421203 in words is "one trillion, two hundred ten billion, four hundred twenty million, four hundred twenty-one thousand, two hundred three".