2331121133220 has 96 divisors (see below), whose sum is σ = 7121010032640. Its totient is φ = 565081023360.

The previous prime is 2331121133213. The next prime is 2331121133279. The reversal of 2331121133220 is 223311211332.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10021959 + ... + 10251921.

It is an arithmetic number, because the mean of its divisors is an integer number (74177187840).

Almost surely, 2^{2331121133220} is an apocalyptic number.

2331121133220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2331121133220 is an abundant number, since it is smaller than the sum of its proper divisors (4789888899420).

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

2331121133220 is a wasteful number, since it uses less digits than its factorization.

2331121133220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245345 (or 245343 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 2331121133220 its reverse (223311211332), we get a palindrome (2554432344552).

The spelling of 2331121133220 in words is "two trillion, three hundred thirty-one billion, one hundred twenty-one million, one hundred thirty-three thousand, two hundred twenty".