20010030123 has 8 divisors (see below), whose sum is σ = 26843722048. Its totient is φ = 13258179144.

The previous prime is 20010030121. The next prime is 20010030179. The reversal of 20010030123 is 32103001002.

It is a happy number.

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

It is not a de Polignac number, because 20010030123 - 2¹ = 20010030121 is a prime.

It is a super-3 number, since 3×20010030123³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010030099 and 20010030108.

It is not an unprimeable number, because it can be changed into a prime (20010030121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20459665 + ... + 20460642.

It is an arithmetic number, because the mean of its divisors is an integer number (3355465256).

Almost surely, 2^20010030123 is an apocalyptic number.

20010030123 is a deficient number, since it is larger than the sum of its proper divisors (6833691925).

20010030123 is a wasteful number, since it uses less digits than its factorization.

20010030123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40920473.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20010030123 its reverse (32103001002), we get a palindrome (52113031125).

The spelling of 20010030123 in words is "twenty billion, ten million, thirty thousand, one hundred twenty-three".