2321223120020 has 48 divisors (see below), whose sum is σ = 5571154608768. Its totient is φ = 795816624000.

The previous prime is 2321223119977. The next prime is 2321223120059. The reversal of 2321223120020 is 200213221232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2321223119974 and 2321223120001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3397319 + ... + 4022961.

It is an arithmetic number, because the mean of its divisors is an integer number (116065721016).

Almost surely, 2^{2321223120020} is an apocalyptic number.

2321223120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2321223120020 is an abundant number, since it is smaller than the sum of its proper divisors (3249931488748).

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

2321223120020 is a wasteful number, since it uses less digits than its factorization.

2321223120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652160 (or 652158 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2321223120020 its reverse (200213221232), we get a palindrome (2521436341252).

The spelling of 2321223120020 in words is "two trillion, three hundred twenty-one billion, two hundred twenty-three million, one hundred twenty thousand, twenty".