213001144001 has 4 divisors (see below), whose sum is σ = 213009112404. Its totient is φ = 212993175600.

The previous prime is 213001143919. The next prime is 213001144019. The reversal of 213001144001 is 100441100312.

It is a happy number.

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 143017086976 + 69984057025 = 378176^2 + 264545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213001144001 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 (213001144021) 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, 3943970 + ... + 3997611.

It is an arithmetic number, because the mean of its divisors is an integer number (53252278101).

Almost surely, 2^213001144001 is an apocalyptic number.

It is an amenable number.

213001144001 is a deficient number, since it is larger than the sum of its proper divisors (7968403).

213001144001 is an equidigital number, since it uses as much as digits as its factorization.

213001144001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7968402.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 213001144001 its reverse (100441100312), we get a palindrome (313442244313).

The spelling of 213001144001 in words is "two hundred thirteen billion, one million, one hundred forty-four thousand, one".