203132221320 has 64 divisors (see below), whose sum is σ = 696453333120. Its totient is φ = 46430221824.

The previous prime is 203132221289. The next prime is 203132221373. The reversal of 203132221320 is 23122231302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120911197 + ... + 120912876.

It is an arithmetic number, because the mean of its divisors is an integer number (10882083330).

Almost surely, 2^203132221320 is an apocalyptic number.

203132221320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203132221320 is an abundant number, since it is smaller than the sum of its proper divisors (493321111800).

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

203132221320 is a wasteful number, since it uses less digits than its factorization.

203132221320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241824094 (or 241824090 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 203132221320 its reverse (23122231302), we get a palindrome (226254452622).

The spelling of 203132221320 in words is "two hundred three billion, one hundred thirty-two million, two hundred twenty-one thousand, three hundred twenty".