212545020353 has 4 divisors (see below), whose sum is σ = 212640720468. Its totient is φ = 212449320240.

The previous prime is 212545020283. The next prime is 212545020397. The reversal of 212545020353 is 353020545212.

212545020353 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 50029610929 + 162515409424 = 223673^2 + 403132^2 .

It is a cyclic number.

It is not a de Polignac number, because 212545020353 - 2¹⁰ = 212545019329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212545020953) 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, 47846726 + ... + 47851167.

It is an arithmetic number, because the mean of its divisors is an integer number (53160180117).

Almost surely, 2^212545020353 is an apocalyptic number.

It is an amenable number.

212545020353 is a deficient number, since it is larger than the sum of its proper divisors (95700115).

212545020353 is an equidigital number, since it uses as much as digits as its factorization.

212545020353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95700114.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 212545020353 its reverse (353020545212), we get a palindrome (565565565565).

The spelling of 212545020353 in words is "two hundred twelve billion, five hundred forty-five million, twenty thousand, three hundred fifty-three".