203023122221200 has 30 divisors (see below), whose sum is σ = 487763051137394. Its totient is φ = 81209248888320.

The previous prime is 203023122221173. The next prime is 203023122221203. The reversal of 203023122221200 is 2122221320302.

It can be written as a sum of positive squares in 3 ways, for example, as 137397731584 + 202885724489616 = 370672^2 + 14243796^2 .

It is not an unprimeable number, because it can be changed into a prime (203023122221203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 253778902377 + ... + 253778903176.

Almost surely, 2^{203023122221200} is an apocalyptic number.

203023122221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203023122221200 is an abundant number, since it is smaller than the sum of its proper divisors (284739928916194).

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

203023122221200 is a wasteful number, since it uses less digits than its factorization.

203023122221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507557805571 (or 507557805560 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 203023122221200 its reverse (2122221320302), we get a palindrome (205145343541502).

The spelling of 203023122221200 in words is "two hundred three trillion, twenty-three billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred".