231213332200013 has 4 divisors (see below), whose sum is σ = 231213581305980. Its totient is φ = 231213083094048.

The previous prime is 231213332200009. The next prime is 231213332200043. The reversal of 231213332200013 is 310002233312132.

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 107753077854724 + 123460254345289 = 10380418^2 + 11111267^2 .

It is a cyclic number.

It is not a de Polignac number, because 231213332200013 - 2² = 231213332200009 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 (231213332200043) 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, 123155498 + ... + 125018811.

It is an arithmetic number, because the mean of its divisors is an integer number (57803395326495).

Almost surely, 2^{231213332200013} is an apocalyptic number.

It is an amenable number.

231213332200013 is a deficient number, since it is larger than the sum of its proper divisors (249105967).

231213332200013 is an equidigital number, since it uses as much as digits as its factorization.

231213332200013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249105966.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 231213332200013 its reverse (310002233312132), we get a palindrome (541215565512145).

The spelling of 231213332200013 in words is "two hundred thirty-one trillion, two hundred thirteen billion, three hundred thirty-two million, two hundred thousand, thirteen".