20203002000 has 120 divisors (see below), whose sum is σ = 70562414520. Its totient is φ = 5387462400.

The previous prime is 20203001999. The next prime is 20203002019. The reversal of 20203002000 is 20030202.

It can be written as a sum of positive squares in 4 ways, for example, as 328769424 + 19874232576 = 18132^2 + 140976^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×20203002000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 543195 + ... + 579194.

It is an arithmetic number, because the mean of its divisors is an integer number (588020121).

Almost surely, 2^20203002000 is an apocalyptic number.

20203002000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20203002000 is an abundant number, since it is smaller than the sum of its proper divisors (50359412520).

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

20203002000 is a wasteful number, since it uses less digits than its factorization.

20203002000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122418 (or 1122399 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

Adding to 20203002000 its reverse (20030202), we get a palindrome (20223032202).

The spelling of 20203002000 in words is "twenty billion, two hundred three million, two thousand".