213101301321 has 24 divisors (see below), whose sum is σ = 310477390080. Its totient is φ = 140840013600.

The previous prime is 213101301313. The next prime is 213101301349. The reversal of 213101301321 is 123103101312.

213101301321 is a `hidden beast` number, since 2 + 1 + 310 + 1 + 30 + 1 + 321 = 666.

It is not a de Polignac number, because 213101301321 - 2³ = 213101301313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213101301294 and 213101301303.

It is not an unprimeable number, because it can be changed into a prime (213101301311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1077195 + ... + 1259583.

It is an arithmetic number, because the mean of its divisors is an integer number (12936557920).

Almost surely, 2^213101301321 is an apocalyptic number.

It is an amenable number.

213101301321 is a deficient number, since it is larger than the sum of its proper divisors (97376088759).

213101301321 is a wasteful number, since it uses less digits than its factorization.

213101301321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183517 (or 183514 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 213101301321 its reverse (123103101312), we get a palindrome (336204402633).

Subtracting from 213101301321 its reverse (123103101312), we obtain a square (89998200009 = 299997²).

The spelling of 213101301321 in words is "two hundred thirteen billion, one hundred one million, three hundred one thousand, three hundred twenty-one".