20203213120 has 28 divisors (see below), whose sum is σ = 48108902004. Its totient is φ = 8081285120.

The previous prime is 20203213091. The next prime is 20203213141. The reversal of 20203213120 is 2131230202.

It can be written as a sum of positive squares in 2 ways, for example, as 4626176256 + 15577036864 = 68016^2 + 124808^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 20203213094 and 20203213103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31567201 + ... + 31567840.

Almost surely, 2^20203213120 is an apocalyptic number.

20203213120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20203213120 is an abundant number, since it is smaller than the sum of its proper divisors (27905688884).

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

20203213120 is an equidigital number, since it uses as much as digits as its factorization.

20203213120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63135058 (or 63135048 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20203213120 its reverse (2131230202), we get a palindrome (22334443322).

The spelling of 20203213120 in words is "twenty billion, two hundred three million, two hundred thirteen thousand, one hundred twenty".