1021103203 has 8 divisors (see below), whose sum is σ = 1067386880. Its totient is φ = 975653640.

The previous prime is 1021103197. The next prime is 1021103261. The reversal of 1021103203 is 3023011201.

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

It is a cyclic number.

It is not a de Polignac number, because 1021103203 - 2¹³ = 1021095011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021103273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206025 + ... + 210922.

It is an arithmetic number, because the mean of its divisors is an integer number (133423360).

Almost surely, 2^1021103203 is an apocalyptic number.

1021103203 is a deficient number, since it is larger than the sum of its proper divisors (46283677).

1021103203 is an equidigital number, since it uses as much as digits as its factorization.

1021103203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417057.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1021103203 is about 31954.7054907411. The cubic root of 1021103203 is about 1006.9854903014.

Adding to 1021103203 its reverse (3023011201), we get a palindrome (4044114404).

The spelling of 1021103203 in words is "one billion, twenty-one million, one hundred three thousand, two hundred three".