213122430331303 has 24 divisors (see below), whose sum is σ = 225234972643200. Its totient is φ = 201631665505536.

The previous prime is 213122430331241. The next prime is 213122430331313. The reversal of 213122430331303 is 303133034221312.

It is not a de Polignac number, because 213122430331303 - 2¹⁷ = 213122430200231 is a prime.

It is a super-2 number, since 2×213122430331303² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213122430331313) 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, 873298363 + ... + 873542371.

It is an arithmetic number, because the mean of its divisors is an integer number (9384790526800).

Almost surely, 2^{213122430331303} is an apocalyptic number.

213122430331303 is a deficient number, since it is larger than the sum of its proper divisors (12112542311897).

213122430331303 is a wasteful number, since it uses less digits than its factorization.

213122430331303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247319 (or 247300 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 213122430331303 its reverse (303133034221312), we get a palindrome (516255464552615).

The spelling of 213122430331303 in words is "two hundred thirteen trillion, one hundred twenty-two billion, four hundred thirty million, three hundred thirty-one thousand, three hundred three".