1020421203 has 8 divisors (see below), whose sum is σ = 1404450816. Its totient is φ = 658336200.

The previous prime is 1020421177. The next prime is 1020421219. The reversal of 1020421203 is 3021240201.

1020421203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1020421203 - 2⁶ = 1020421139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020421253) 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, 5486043 + ... + 5486228.

It is an arithmetic number, because the mean of its divisors is an integer number (175556352).

Almost surely, 2^1020421203 is an apocalyptic number.

1020421203 is a deficient number, since it is larger than the sum of its proper divisors (384029613).

1020421203 is a wasteful number, since it uses less digits than its factorization.

1020421203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10972305.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1020421203 is about 31944.0323534772. The cubic root of 1020421203 is about 1006.7612501342.

Adding to 1020421203 its reverse (3021240201), we get a palindrome (4041661404).

The spelling of 1020421203 in words is "one billion, twenty million, four hundred twenty-one thousand, two hundred three".