12331220330 has 64 divisors (see below), whose sum is σ = 26631618048. Its totient is φ = 4051061760.

The previous prime is 12331220329. The next prime is 12331220401. The reversal of 12331220330 is 3302213321.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24527 + ... + 158946.

It is an arithmetic number, because the mean of its divisors is an integer number (416119032).

Almost surely, 2^12331220330 is an apocalyptic number.

12331220330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12331220330 is an abundant number, since it is smaller than the sum of its proper divisors (14300397718).

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

12331220330 is a wasteful number, since it uses less digits than its factorization.

12331220330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183551.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 12331220330 its reverse (3302213321), we get a palindrome (15633433651).

The spelling of 12331220330 in words is "twelve billion, three hundred thirty-one million, two hundred twenty thousand, three hundred thirty".