231021313003213 has 16 divisors (see below), whose sum is σ = 245589688060416. Its totient is φ = 216561733696000.

The previous prime is 231021313003211. The next prime is 231021313003363. The reversal of 231021313003213 is 312300313120132.

231021313003213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 231021313003213 - 2¹ = 231021313003211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231021313003211) 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, 257205945 + ... + 258102577.

It is an arithmetic number, because the mean of its divisors is an integer number (15349355503776).

Almost surely, 2^{231021313003213} is an apocalyptic number.

It is an amenable number.

231021313003213 is a deficient number, since it is larger than the sum of its proper divisors (14568375057203).

231021313003213 is a wasteful number, since it uses less digits than its factorization.

231021313003213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957284.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 231021313003213 its reverse (312300313120132), we get a palindrome (543321626123345).

The spelling of 231021313003213 in words is "two hundred thirty-one trillion, twenty-one billion, three hundred thirteen million, three thousand, two hundred thirteen".