2000123420 has 24 divisors (see below), whose sum is σ = 4213953744. Its totient is φ = 797440896.

The previous prime is 2000123387. The next prime is 2000123431. The reversal of 2000123420 is 243210002.

It is a junction number, because it is equal to n+sod(n) for n = 2000123395 and 2000123404.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 156737 + ... + 169016.

It is an arithmetic number, because the mean of its divisors is an integer number (175581406).

Almost surely, 2^2000123420 is an apocalyptic number.

2000123420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000123420 is an abundant number, since it is smaller than the sum of its proper divisors (2213830324).

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

2000123420 is a wasteful number, since it uses less digits than its factorization.

2000123420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326069 (or 326067 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2000123420 is about 44722.7394062573. The cubic root of 2000123420 is about 1259.9469659378.

Adding to 2000123420 its reverse (243210002), we get a palindrome (2243333422).

The spelling of 2000123420 in words is "two billion, one hundred twenty-three thousand, four hundred twenty".