213200121233 has 12 divisors (see below), whose sum is σ = 234490887540. Its totient is φ = 193696752480.

The previous prime is 213200121227. The next prime is 213200121257. The reversal of 213200121233 is 332121002312.

It can be written as a sum of positive squares in 2 ways, for example, as 72731077969 + 140469043264 = 269687^2 + 374792^2 .

It is not a de Polignac number, because 213200121233 - 2¹⁴ = 213200104849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213200121203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 358418 + ... + 744891.

It is an arithmetic number, because the mean of its divisors is an integer number (19540907295).

Almost surely, 2^213200121233 is an apocalyptic number.

It is an amenable number.

213200121233 is a deficient number, since it is larger than the sum of its proper divisors (21290766307).

213200121233 is a wasteful number, since it uses less digits than its factorization.

213200121233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104928 (or 1104917 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213200121233 its reverse (332121002312), we get a palindrome (545321123545).

It can be divided in two parts, 213200 and 121233, that added together give a palindrome (334433).

The spelling of 213200121233 in words is "two hundred thirteen billion, two hundred million, one hundred twenty-one thousand, two hundred thirty-three".