231300012313213 has 4 divisors (see below), whose sum is σ = 235664163488988. Its totient is φ = 226935861137440.

The previous prime is 231300012313159. The next prime is 231300012313259. The reversal of 231300012313213 is 312313210003132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 200067361163289 + 31232651149924 = 14144517^2 + 5588618^2 .

It is a cyclic number.

It is not a de Polignac number, because 231300012313213 - 2³⁷ = 231162573359741 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 (231300012313283) 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, 2182075587808 + ... + 2182075587913.

It is an arithmetic number, because the mean of its divisors is an integer number (58916040872247).

Almost surely, 2^{231300012313213} is an apocalyptic number.

It is an amenable number.

231300012313213 is a deficient number, since it is larger than the sum of its proper divisors (4364151175775).

231300012313213 is an equidigital number, since it uses as much as digits as its factorization.

231300012313213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4364151175774.

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

Adding to 231300012313213 its reverse (312313210003132), we get a palindrome (543613222316345).

The spelling of 231300012313213 in words is "two hundred thirty-one trillion, three hundred billion, twelve million, three hundred thirteen thousand, two hundred thirteen".