211423134001 has 4 divisors (see below), whose sum is σ = 211529218852. Its totient is φ = 211317049152.

The previous prime is 211423133989. The next prime is 211423134017. The reversal of 211423134001 is 100431324112.

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 194891346225 + 16531787776 = 441465^2 + 128576^2 .

It is a cyclic number.

It is not a de Polignac number, because 211423134001 - 2⁵ = 211423133969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211423134101) 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, 53039436 + ... + 53043421.

It is an arithmetic number, because the mean of its divisors is an integer number (52882304713).

Almost surely, 2^211423134001 is an apocalyptic number.

It is an amenable number.

211423134001 is a deficient number, since it is larger than the sum of its proper divisors (106084851).

211423134001 is a wasteful number, since it uses less digits than its factorization.

211423134001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106084850.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 211423134001 its reverse (100431324112), we get a palindrome (311854458113).

The spelling of 211423134001 in words is "two hundred eleven billion, four hundred twenty-three million, one hundred thirty-four thousand, one".