1020203223 has 32 divisors (see below), whose sum is σ = 1504612032. Its totient is φ = 611020800.

The previous prime is 1020203221. The next prime is 1020203227. The reversal of 1020203223 is 3223020201.

It is not a de Polignac number, because 1020203223 - 2¹ = 1020203221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020203221) 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 31 ways as a sum of consecutive naturals, for example, 228553 + ... + 232973.

It is an arithmetic number, because the mean of its divisors is an integer number (47019126).

Almost surely, 2^1020203223 is an apocalyptic number.

1020203223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1020203223 is a deficient number, since it is larger than the sum of its proper divisors (484408809).

1020203223 is a wasteful number, since it uses less digits than its factorization.

1020203223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4595.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1020203223 is about 31940.6202663630. The cubic root of 1020203223 is about 1006.6895576982.

Adding to 1020203223 its reverse (3223020201), we get a palindrome (4243223424).

The spelling of 1020203223 in words is "one billion, twenty million, two hundred three thousand, two hundred twenty-three".