213203001133 has 4 divisors (see below), whose sum is σ = 213296472508. Its totient is φ = 213109529760.

The previous prime is 213203001127. The next prime is 213203001157. The reversal of 213203001133 is 331100302312.

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 157210664004 + 55992337129 = 396498^2 + 236627^2 .

It is a cyclic number.

It is not a de Polignac number, because 213203001133 - 2¹⁷ = 213202870061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213203001133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213203001173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46732266 + ... + 46736827.

It is an arithmetic number, because the mean of its divisors is an integer number (53324118127).

Almost surely, 2^213203001133 is an apocalyptic number.

It is an amenable number.

213203001133 is a deficient number, since it is larger than the sum of its proper divisors (93471375).

213203001133 is an equidigital number, since it uses as much as digits as its factorization.

213203001133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93471374.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 213203001133 its reverse (331100302312), we get a palindrome (544303303445).

The spelling of 213203001133 in words is "two hundred thirteen billion, two hundred three million, one thousand, one hundred thirty-three".