213142223321 has 16 divisors (see below), whose sum is σ = 221852467200. Its totient is φ = 204548153040.

The previous prime is 213142223293. The next prime is 213142223369. The reversal of 213142223321 is 123322241312.

It is a cyclic number.

It is not a de Polignac number, because 213142223321 - 2⁶ = 213142223257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213142223521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9433580 + ... + 9456146.

It is an arithmetic number, because the mean of its divisors is an integer number (13865779200).

Almost surely, 2^213142223321 is an apocalyptic number.

It is an amenable number.

213142223321 is a deficient number, since it is larger than the sum of its proper divisors (8710243879).

213142223321 is a wasteful number, since it uses less digits than its factorization.

213142223321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25124.

The product of its digits is 3456, while the sum is 26.

Adding to 213142223321 its reverse (123322241312), we get a palindrome (336464464633).

The spelling of 213142223321 in words is "two hundred thirteen billion, one hundred forty-two million, two hundred twenty-three thousand, three hundred twenty-one".