2123232120020 has 48 divisors (see below), whose sum is σ = 5150257172928. Its totient is φ = 726667676160.

The previous prime is 2123232119963. The next prime is 2123232120083. The reversal of 2123232120020 is 200212323212.

It is a happy number.

It is a super-2 number, since 2×2123232120020² (a number of 25 digits) contains 22 as substring.

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 = 2123232119974 and 2123232120001.

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, 283850822 + ... + 283858301.

It is an arithmetic number, because the mean of its divisors is an integer number (107297024436).

Almost surely, 2^{2123232120020} is an apocalyptic number.

2123232120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123232120020 is an abundant number, since it is smaller than the sum of its proper divisors (3027025052908).

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

2123232120020 is a wasteful number, since it uses less digits than its factorization.

2123232120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567709160 (or 567709158 counting only the distinct ones).

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

Adding to 2123232120020 its reverse (200212323212), we get a palindrome (2323444443232).

The spelling of 2123232120020 in words is "two trillion, one hundred twenty-three billion, two hundred thirty-two million, one hundred twenty thousand, twenty".