213123131301 has 8 divisors (see below), whose sum is σ = 284196424864. Its totient is φ = 142065962640.

The previous prime is 213123131281. The next prime is 213123131327. The reversal of 213123131301 is 103131321312.

It is a happy number.

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

It is not a de Polignac number, because 213123131301 - 2¹⁰ = 213123130277 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 (213123131341) 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, 4000351 + ... + 4053276.

It is an arithmetic number, because the mean of its divisors is an integer number (35524553108).

Almost surely, 2^213123131301 is an apocalyptic number.

It is an amenable number.

213123131301 is a deficient number, since it is larger than the sum of its proper divisors (71073293563).

213123131301 is an equidigital number, since it uses as much as digits as its factorization.

213123131301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8062451.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 213123131301 its reverse (103131321312), we get a palindrome (316254452613).

The spelling of 213123131301 in words is "two hundred thirteen billion, one hundred twenty-three million, one hundred thirty-one thousand, three hundred one".