2000020123 has 4 divisors (see below), whose sum is σ = 2105284360. Its totient is φ = 1894755888.

The previous prime is 2000020117. The next prime is 2000020129. The reversal of 2000020123 is 3210200002.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2000020117) and next prime (2000020129).

It is a cyclic number.

It is not a de Polignac number, because 2000020123 - 2¹³ = 2000011931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2000020129) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 52632090 + ... + 52632127.

It is an arithmetic number, because the mean of its divisors is an integer number (526321090).

Almost surely, 2^2000020123 is an apocalyptic number.

2000020123 is a deficient number, since it is larger than the sum of its proper divisors (105264237).

2000020123 is a wasteful number, since it uses less digits than its factorization.

2000020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105264236.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 2000020123 is about 44721.5845314094. The cubic root of 2000020123 is about 1259.9252754459.

Adding to 2000020123 its reverse (3210200002), we get a palindrome (5210220125).

The spelling of 2000020123 in words is "two billion, twenty thousand, one hundred twenty-three".