1020203 has 8 divisors (see below), whose sum is σ = 1058400. Its totient is φ = 982720.

The previous prime is 1020163. The next prime is 1020223. The reversal of 1020203 is 3020201.

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 1020203 - 2¹⁴ = 1003819 is a prime.

It is a super-2 number, since 2×1020203² = 2081628322418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6026 + ... + 6192.

It is an arithmetic number, because the mean of its divisors is an integer number (132300).

2^1020203 is an apocalyptic number.

1020203 is a deficient number, since it is larger than the sum of its proper divisors (38197).

1020203 is a wasteful number, since it uses less digits than its factorization.

1020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 1020203 is about 1010.0509888120. The cubic root of 1020203 is about 100.6689484349.

Adding to 1020203 its reverse (3020201), we get a palindrome (4040404).

The spelling of 1020203 in words is "one million, twenty thousand, two hundred three".