231213130313320 has 64 divisors (see below), whose sum is σ = 533991358094400. Its totient is φ = 90068007198720.

The previous prime is 231213130313317. The next prime is 231213130313327. The reversal of 231213130313320 is 23313031312132.

It is a happy number.

231213130313320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231213130313327) 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, 457559001 + ... + 458064040.

It is an arithmetic number, because the mean of its divisors is an integer number (8343614970225).

Almost surely, 2^{231213130313320} is an apocalyptic number.

231213130313320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231213130313320 is an abundant number, since it is smaller than the sum of its proper divisors (302778227781080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231213130313320 is a wasteful number, since it uses less digits than its factorization.

231213130313320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915623218 (or 915623214 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 231213130313320 its reverse (23313031312132), we get a palindrome (254526161625452).

The spelling of 231213130313320 in words is "two hundred thirty-one trillion, two hundred thirteen billion, one hundred thirty million, three hundred thirteen thousand, three hundred twenty".