211053230404 has 12 divisors (see below), whose sum is σ = 369484303804. Its totient is φ = 105486286464.

The previous prime is 211053230393. The next prime is 211053230417. The reversal of 211053230404 is 404032350112.

It can be written as a sum of positive squares in 2 ways, for example, as 178219065600 + 32834164804 = 422160^2 + 181202^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10070409 + ... + 10091344.

Almost surely, 2^211053230404 is an apocalyptic number.

It is an amenable number.

211053230404 is a deficient number, since it is larger than the sum of its proper divisors (158431073400).

211053230404 is a wasteful number, since it uses less digits than its factorization.

211053230404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20164374 (or 20164372 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 211053230404 its reverse (404032350112), we get a palindrome (615085580516).

The spelling of 211053230404 in words is "two hundred eleven billion, fifty-three million, two hundred thirty thousand, four hundred four".