20210103123 has 8 divisors (see below), whose sum is σ = 30796347648. Its totient is φ = 11548630344.

The previous prime is 20210103119. The next prime is 20210103143. The reversal of 20210103123 is 32130101202.

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

It is not a de Polignac number, because 20210103123 - 2² = 20210103119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20210103143) 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, 481192911 + ... + 481192952.

It is an arithmetic number, because the mean of its divisors is an integer number (3849543456).

Almost surely, 2^20210103123 is an apocalyptic number.

20210103123 is a deficient number, since it is larger than the sum of its proper divisors (10586244525).

20210103123 is an equidigital number, since it uses as much as digits as its factorization.

20210103123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962385873.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20210103123 its reverse (32130101202), we get a palindrome (52340204325).

The spelling of 20210103123 in words is "twenty billion, two hundred ten million, one hundred three thousand, one hundred twenty-three".