20002020123 has 8 divisors (see below), whose sum is σ = 28238146128. Its totient is φ = 12550287104.

The previous prime is 20002020113. The next prime is 20002020131. The reversal of 20002020123 is 32102020002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20002020123 - 2¹⁴ = 20002003739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20002020099 and 20002020108.

It is not an unprimeable number, because it can be changed into a prime (20002020113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196098186 + ... + 196098287.

It is an arithmetic number, because the mean of its divisors is an integer number (3529768266).

Almost surely, 2^20002020123 is an apocalyptic number.

20002020123 is a deficient number, since it is larger than the sum of its proper divisors (8236126005).

20002020123 is a wasteful number, since it uses less digits than its factorization.

20002020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392196493.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20002020123 its reverse (32102020002), we get a palindrome (52104040125).

The spelling of 20002020123 in words is "twenty billion, two million, twenty thousand, one hundred twenty-three".