213112321301 has 16 divisors (see below), whose sum is σ = 234373030848. Its totient is φ = 192172041600.

The previous prime is 213112321267. The next prime is 213112321309. The reversal of 213112321301 is 103123211312.

It is a happy number.

It is not a de Polignac number, because 213112321301 - 2⁶ = 213112321237 is a prime.

It is a super-2 number, since 2×213112321301² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213112321309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 568721 + ... + 865833.

It is an arithmetic number, because the mean of its divisors is an integer number (14648314428).

Almost surely, 2^213112321301 is an apocalyptic number.

It is an amenable number.

213112321301 is a deficient number, since it is larger than the sum of its proper divisors (21260709547).

213112321301 is a wasteful number, since it uses less digits than its factorization.

213112321301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297652.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213112321301 its reverse (103123211312), we get a palindrome (316235532613).

The spelling of 213112321301 in words is "two hundred thirteen billion, one hundred twelve million, three hundred twenty-one thousand, three hundred one".