231030311003213 has 4 divisors (see below), whose sum is σ = 238482901680768. Its totient is φ = 223577720325660.

The previous prime is 231030311003071. The next prime is 231030311003383. The reversal of 231030311003213 is 312300113030132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231030311003213 - 2²⁰ = 231030309954637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231030311033213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3726295338731 + ... + 3726295338792.

It is an arithmetic number, because the mean of its divisors is an integer number (59620725420192).

Almost surely, 2^{231030311003213} is an apocalyptic number.

It is an amenable number.

231030311003213 is a deficient number, since it is larger than the sum of its proper divisors (7452590677555).

231030311003213 is an equidigital number, since it uses as much as digits as its factorization.

231030311003213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7452590677554.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 231030311003213 its reverse (312300113030132), we get a palindrome (543330424033345).

The spelling of 231030311003213 in words is "two hundred thirty-one trillion, thirty billion, three hundred eleven million, three thousand, two hundred thirteen".