213223020133133 has 4 divisors (see below), whose sum is σ = 213299471559420. Its totient is φ = 213146568706848.

The previous prime is 213223020133103. The next prime is 213223020133171. The reversal of 213223020133133 is 331331020322312.

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 160622494258249 + 52600525874884 = 12673693^2 + 7252622^2 .

It is a cyclic number.

It is not a de Polignac number, because 213223020133133 - 2²⁶ = 213222953024269 is a prime.

It is a super-2 number, since 2×213223020133133² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213223020133096 and 213223020133105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213223020133103) 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, 38225708960 + ... + 38225714537.

It is an arithmetic number, because the mean of its divisors is an integer number (53324867889855).

Almost surely, 2^{213223020133133} is an apocalyptic number.

It is an amenable number.

213223020133133 is a deficient number, since it is larger than the sum of its proper divisors (76451426287).

213223020133133 is an equidigital number, since it uses as much as digits as its factorization.

213223020133133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76451426286.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 213223020133133 its reverse (331331020322312), we get a palindrome (544554040455445).

The spelling of 213223020133133 in words is "two hundred thirteen trillion, two hundred twenty-three billion, twenty million, one hundred thirty-three thousand, one hundred thirty-three".