211404031423 has 8 divisors (see below), whose sum is σ = 235516428000. Its totient is φ = 188413141728.

The previous prime is 211404031381. The next prime is 211404031439. The reversal of 211404031423 is 324130404112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211404031423 - 2¹³ = 211404023231 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 (211404031453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280376323 + ... + 280377076.

It is an arithmetic number, because the mean of its divisors is an integer number (29439553500).

Almost surely, 2^211404031423 is an apocalyptic number.

211404031423 is a deficient number, since it is larger than the sum of its proper divisors (24112396577).

211404031423 is a wasteful number, since it uses less digits than its factorization.

211404031423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560753441.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 211404031423 its reverse (324130404112), we get a palindrome (535534435535).

The spelling of 211404031423 in words is "two hundred eleven billion, four hundred four million, thirty-one thousand, four hundred twenty-three".