10002000123 has 20 divisors (see below), whose sum is σ = 14944564800. Its totient is φ = 6666525072.

The previous prime is 10002000119. The next prime is 10002000131. The reversal of 10002000123 is 32100020001.

It is a happy number.

10002000123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10002000123 - 2² = 10002000119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10002000103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 452278 + ... + 473876.

It is an arithmetic number, because the mean of its divisors is an integer number (747228240).

Almost surely, 2^10002000123 is an apocalyptic number.

10002000123 is a deficient number, since it is larger than the sum of its proper divisors (4942564677).

10002000123 is an equidigital number, since it uses as much as digits as its factorization.

10002000123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27328 (or 27319 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 10002000123 its reverse (32100020001), we get a palindrome (42102020124).

The spelling of 10002000123 in words is "ten billion, two million, one hundred twenty-three", and thus it is an aban number.