211432404413 has 4 divisors (see below), whose sum is σ = 211435954620. Its totient is φ = 211428854208.

The previous prime is 211432404401. The next prime is 211432404431. The reversal of 211432404413 is 314404234112.

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 171000444484 + 40431959929 = 413522^2 + 201077^2 .

It is a cyclic number.

It is not a de Polignac number, because 211432404413 - 2¹⁶ = 211432338877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211432404493) 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, 1684220 + ... + 1805397.

It is an arithmetic number, because the mean of its divisors is an integer number (52858988655).

Almost surely, 2^211432404413 is an apocalyptic number.

It is an amenable number.

211432404413 is a deficient number, since it is larger than the sum of its proper divisors (3550207).

211432404413 is an equidigital number, since it uses as much as digits as its factorization.

211432404413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3550206.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 211432404413 its reverse (314404234112), we get a palindrome (525836638525).

The spelling of 211432404413 in words is "two hundred eleven billion, four hundred thirty-two million, four hundred four thousand, four hundred thirteen".