20112010123 has 8 divisors (see below), whose sum is σ = 21748156992. Its totient is φ = 18526206336.

The previous prime is 20112010111. The next prime is 20112010141. The reversal of 20112010123 is 32101021102.

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 20112010123 - 2⁵ = 20112010091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112010103) 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 7 ways as a sum of consecutive naturals, for example, 12584940 + ... + 12586537.

It is an arithmetic number, because the mean of its divisors is an integer number (2718519624).

Almost surely, 2^20112010123 is an apocalyptic number.

20112010123 is a deficient number, since it is larger than the sum of its proper divisors (1636146869).

20112010123 is a wasteful number, since it uses less digits than its factorization.

20112010123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25171541.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20112010123 its reverse (32101021102), we get a palindrome (52213031225).

The spelling of 20112010123 in words is "twenty billion, one hundred twelve million, ten thousand, one hundred twenty-three".