211404326153 has 4 divisors (see below), whose sum is σ = 211413874068. Its totient is φ = 211394778240.

The previous prime is 211404326117. The next prime is 211404326167. The reversal of 211404326153 is 351623404112.

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 99519428089 + 111884898064 = 315467^2 + 334492^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211404326153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211404326113) 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, 4740668 + ... + 4785053.

It is an arithmetic number, because the mean of its divisors is an integer number (52853468517).

Almost surely, 2^211404326153 is an apocalyptic number.

It is an amenable number.

211404326153 is a deficient number, since it is larger than the sum of its proper divisors (9547915).

211404326153 is an equidigital number, since it uses as much as digits as its factorization.

211404326153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9547914.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 211404326153 in words is "two hundred eleven billion, four hundred four million, three hundred twenty-six thousand, one hundred fifty-three".