2321240220 has 96 divisors (see below), whose sum is σ = 7777170240. Its totient is φ = 571380480.

The previous prime is 2321240213. The next prime is 2321240249. The reversal of 2321240220 is 220421232.

2321240220 is a `hidden beast` number, since 232 + 12 + 402 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2321240193 and 2321240202.

It is a congruent 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, 158311 + ... + 172350.

It is an arithmetic number, because the mean of its divisors is an integer number (81012190).

Almost surely, 2^2321240220 is an apocalyptic number.

2321240220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2321240220 is an abundant number, since it is smaller than the sum of its proper divisors (5455930020).

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

2321240220 is a wasteful number, since it uses less digits than its factorization.

2321240220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330692 (or 330684 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2321240220 is about 48179.2509281745. The cubic root of 2321240220 is about 1324.0570426284.

Adding to 2321240220 its reverse (220421232), we get a palindrome (2541661452).

The spelling of 2321240220 in words is "two billion, three hundred twenty-one million, two hundred forty thousand, two hundred twenty".