203011003020 has 96 divisors (see below), whose sum is σ = 649717705728. Its totient is φ = 46396622592.

The previous prime is 203011003009. The next prime is 203011003033. The reversal of 203011003020 is 20300110302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 203011002987 and 203011003005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3870289 + ... + 3922391.

It is an arithmetic number, because the mean of its divisors is an integer number (6767892768).

Almost surely, 2^203011003020 is an apocalyptic number.

203011003020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203011003020 is an abundant number, since it is smaller than the sum of its proper divisors (446706702708).

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

203011003020 is a wasteful number, since it uses less digits than its factorization.

203011003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61399 (or 61397 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 203011003020 its reverse (20300110302), we get a palindrome (223311113322).

The spelling of 203011003020 in words is "two hundred three billion, eleven million, three thousand, twenty".