210123001323 has 24 divisors (see below), whose sum is σ = 313590358016. Its totient is φ = 135438318000.

The previous prime is 210123001307. The next prime is 210123001337. The reversal of 210123001323 is 323100321012.

It is not a de Polignac number, because 210123001323 - 2⁴ = 210123001307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210123001296 and 210123001305.

It is not an unprimeable number, because it can be changed into a prime (210123001393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43153 + ... + 649698.

Almost surely, 2^210123001323 is an apocalyptic number.

210123001323 is a deficient number, since it is larger than the sum of its proper divisors (103467356693).

210123001323 is a wasteful number, since it uses less digits than its factorization.

210123001323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693975 (or 693972 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 210123001323 its reverse (323100321012), we get a palindrome (533223322335).

The spelling of 210123001323 in words is "two hundred ten billion, one hundred twenty-three million, one thousand, three hundred twenty-three".