231212313330 has 32 divisors (see below), whose sum is σ = 555495585984. Its totient is φ = 61591502016.

The previous prime is 231212313307. The next prime is 231212313341. The reversal of 231212313330 is 33313212132.

It is a self number, because there is not a number n which added to its sum of digits gives 231212313330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4040797 + ... + 4097616.

It is an arithmetic number, because the mean of its divisors is an integer number (17359237062).

Almost surely, 2^231212313330 is an apocalyptic number.

231212313330 is an abundant number, since it is smaller than the sum of its proper divisors (324283272654).

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

231212313330 is a wasteful number, since it uses less digits than its factorization.

231212313330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8139370.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 231212313330 its reverse (33313212132), we get a palindrome (264525525462).

The spelling of 231212313330 in words is "two hundred thirty-one billion, two hundred twelve million, three hundred thirteen thousand, three hundred thirty".