203002313020 has 48 divisors (see below), whose sum is σ = 459704454048. Its totient is φ = 74855612160.

The previous prime is 203002312967. The next prime is 203002313081. The reversal of 203002313020 is 20313200302.

It is a junction number, because it is equal to n+sod(n) for n = 203002312985 and 203002313003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318886 + ... + 712525.

It is an arithmetic number, because the mean of its divisors is an integer number (9577176126).

Almost surely, 2^203002313020 is an apocalyptic number.

203002313020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203002313020 is an abundant number, since it is smaller than the sum of its proper divisors (256702141028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203002313020 is a wasteful number, since it uses less digits than its factorization.

203002313020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032190 (or 1032188 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 203002313020 its reverse (20313200302), we get a palindrome (223315513322).

The spelling of 203002313020 in words is "two hundred three billion, two million, three hundred thirteen thousand, twenty".