20213210130133 has 4 divisors (see below), whose sum is σ = 20421593739820. Its totient is φ = 20004826520448.

The previous prime is 20213210130119. The next prime is 20213210130209. The reversal of 20213210130133 is 33103101231202.

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 13860602418289 + 6352607711844 = 3722983^2 + 2520438^2 .

It is a cyclic number.

It is not a de Polignac number, because 20213210130133 - 2²¹ = 20213208032981 is a prime.

It is a super-2 number, since 2×20213210130133² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213210130103) 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, 104191804698 + ... + 104191804891.

It is an arithmetic number, because the mean of its divisors is an integer number (5105398434955).

Almost surely, 2^{20213210130133} is an apocalyptic number.

It is an amenable number.

20213210130133 is a deficient number, since it is larger than the sum of its proper divisors (208383609687).

20213210130133 is an equidigital number, since it uses as much as digits as its factorization.

20213210130133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208383609686.

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

Adding to 20213210130133 its reverse (33103101231202), we get a palindrome (53316311361335).

The spelling of 20213210130133 in words is "twenty trillion, two hundred thirteen billion, two hundred ten million, one hundred thirty thousand, one hundred thirty-three".