213111023041001 has 4 divisors (see below), whose sum is σ = 216604646369604. Its totient is φ = 209617399712400.

The previous prime is 213111023040953. The next prime is 213111023041043. The reversal of 213111023041001 is 100140320111312.

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 42990000168976 + 170121022872025 = 6556676^2 + 13043045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213111023041001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213111023041051) 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, 1746811664210 + ... + 1746811664331.

It is an arithmetic number, because the mean of its divisors is an integer number (54151161592401).

Almost surely, 2^{213111023041001} is an apocalyptic number.

It is an amenable number.

213111023041001 is a deficient number, since it is larger than the sum of its proper divisors (3493623328603).

213111023041001 is an equidigital number, since it uses as much as digits as its factorization.

213111023041001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493623328602.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 213111023041001 its reverse (100140320111312), we get a palindrome (313251343152313).

The spelling of 213111023041001 in words is "two hundred thirteen trillion, one hundred eleven billion, twenty-three million, forty-one thousand, one".