213231023103321 has 16 divisors (see below), whose sum is σ = 315911250259200. Its totient is φ = 142147968187824.

The previous prime is 213231023103313. The next prime is 213231023103331. The reversal of 213231023103321 is 123301320132312.

213231023103321 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 3 + 10 + 2 + 310 + 332 + 1 = 666.

It is not a de Polignac number, because 213231023103321 - 2³ = 213231023103313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (213231023103331) 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, 167331681 + ... + 168601166.

It is an arithmetic number, because the mean of its divisors is an integer number (19744453141200).

Almost surely, 2^{213231023103321} is an apocalyptic number.

It is an amenable number.

213231023103321 is a deficient number, since it is larger than the sum of its proper divisors (102680227155879).

213231023103321 is a wasteful number, since it uses less digits than its factorization.

213231023103321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335956365 (or 335956359 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 213231023103321 its reverse (123301320132312), we get a palindrome (336532343235633).

The spelling of 213231023103321 in words is "two hundred thirteen trillion, two hundred thirty-one billion, twenty-three million, one hundred three thousand, three hundred twenty-one".