213120102133 has 4 divisors (see below), whose sum is σ = 213245690220. Its totient is φ = 212994514048.

The previous prime is 213120102061. The next prime is 213120102197. The reversal of 213120102133 is 331201021312.

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 88781353444 + 124338748689 = 297962^2 + 352617^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213120102133 is a prime.

It is a super-2 number, since 2×213120102133² (a number of 23 digits) contains 22 as substring.

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 213120102133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213120109133) 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, 62791498 + ... + 62794891.

It is an arithmetic number, because the mean of its divisors is an integer number (53311422555).

Almost surely, 2^213120102133 is an apocalyptic number.

It is an amenable number.

213120102133 is a deficient number, since it is larger than the sum of its proper divisors (125588087).

213120102133 is a wasteful number, since it uses less digits than its factorization.

213120102133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125588086.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 213120102133 its reverse (331201021312), we get a palindrome (544321123445).

The spelling of 213120102133 in words is "two hundred thirteen billion, one hundred twenty million, one hundred two thousand, one hundred thirty-three".