203011213320 has 48 divisors (see below), whose sum is σ = 659786444460. Its totient is φ = 54136323456.

The previous prime is 203011213291. The next prime is 203011213331. The reversal of 203011213320 is 23312110302.

203011213320 is a `hidden beast` number, since 20 + 301 + 1 + 21 + 3 + 320 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 187709028516 + 15302184804 = 433254^2 + 123702^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 203011213293 and 203011213302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281959659 + ... + 281960378.

Almost surely, 2^203011213320 is an apocalyptic number.

203011213320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203011213320 is an abundant number, since it is smaller than the sum of its proper divisors (456775231140).

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

203011213320 is a wasteful number, since it uses less digits than its factorization.

203011213320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563920054 (or 563920047 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 203011213320 its reverse (23312110302), we get a palindrome (226323323622).

The spelling of 203011213320 in words is "two hundred three billion, eleven million, two hundred thirteen thousand, three hundred twenty".