20002220123 has 2 divisors, whose sum is σ = 20002220124. Its totient is φ = 20002220122.

The previous prime is 20002220081. The next prime is 20002220167. The reversal of 20002220123 is 32102220002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20002220123 - 2¹⁰ = 20002219099 is a prime.

It is a super-3 number, since 3×20002220123³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 20002220098 and 20002220107.

It is not a weakly prime, because it can be changed into another prime (20002220423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001110061 + 10001110062.

It is an arithmetic number, because the mean of its divisors is an integer number (10001110062).

Almost surely, 2^20002220123 is an apocalyptic number.

20002220123 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002220123 is an equidigital number, since it uses as much as digits as its factorization.

20002220123 is an evil number, because the sum of its binary digits is even.

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

Adding to 20002220123 its reverse (32102220002), we get a palindrome (52104440125).

The spelling of 20002220123 in words is "twenty billion, two million, two hundred twenty thousand, one hundred twenty-three".