213201131233 has 4 divisors (see below), whose sum is σ = 213216460228. Its totient is φ = 213185802240.

The previous prime is 213201131219. The next prime is 213201131251. The reversal of 213201131233 is 332131102312.

213201131233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 141351937024 + 71849194209 = 375968^2 + 268047^2 .

It is a cyclic number.

It is not a de Polignac number, because 213201131233 - 2¹⁷ = 213201000161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213201131203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7643616 + ... + 7671457.

It is an arithmetic number, because the mean of its divisors is an integer number (53304115057).

Almost surely, 2^213201131233 is an apocalyptic number.

It is an amenable number.

213201131233 is a deficient number, since it is larger than the sum of its proper divisors (15328995).

213201131233 is a wasteful number, since it uses less digits than its factorization.

213201131233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15328994.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 213201131233 its reverse (332131102312), we get a palindrome (545332233545).

The spelling of 213201131233 in words is "two hundred thirteen billion, two hundred one million, one hundred thirty-one thousand, two hundred thirty-three".