213202213231 has 16 divisors (see below), whose sum is σ = 244333900800. Its totient is φ = 182239663968.

The previous prime is 213202213201. The next prime is 213202213283. The reversal of 213202213231 is 132312202312.

It is a cyclic number.

It is not a de Polignac number, because 213202213231 - 2⁹ = 213202212719 is a prime.

It is a super-2 number, since 2×213202213231² (a number of 23 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 (213202213201) 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, 4548010 + ... + 4594648.

It is an arithmetic number, because the mean of its divisors is an integer number (15270868800).

Almost surely, 2^213202213231 is an apocalyptic number.

213202213231 is a deficient number, since it is larger than the sum of its proper divisors (31131687569).

213202213231 is a wasteful number, since it uses less digits than its factorization.

213202213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48438.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 213202213231 its reverse (132312202312), we get a palindrome (345514415543).

The spelling of 213202213231 in words is "two hundred thirteen billion, two hundred two million, two hundred thirteen thousand, two hundred thirty-one".