2000123113123 has 4 divisors (see below), whose sum is σ = 2002378044240. Its totient is φ = 1997868182008.

The previous prime is 2000123113111. The next prime is 2000123113171. The reversal of 2000123113123 is 3213113210002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000123113123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2000123113123.

It is not an unprimeable number, because it can be changed into a prime (2000123113823) 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 3 ways as a sum of consecutive naturals, for example, 1127464228 + ... + 1127466001.

It is an arithmetic number, because the mean of its divisors is an integer number (500594511060).

Almost surely, 2^{2000123113123} is an apocalyptic number.

2000123113123 is a deficient number, since it is larger than the sum of its proper divisors (2254931117).

2000123113123 is an equidigital number, since it uses as much as digits as its factorization.

2000123113123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254931116.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2000123113123 its reverse (3213113210002), we get a palindrome (5213236323125).

The spelling of 2000123113123 in words is "two trillion, one hundred twenty-three million, one hundred thirteen thousand, one hundred twenty-three".