10002100003123 has 8 divisors (see below), whose sum is σ = 10171752937200. Its totient is φ = 9832451263008.

The previous prime is 10002100002953. The next prime is 10002100003127. The reversal of 10002100003123 is 32130000120001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10002100003123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10002100003127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3963165 + ... + 5975857.

It is an arithmetic number, because the mean of its divisors is an integer number (1271469117150).

Almost surely, 2^{10002100003123} is an apocalyptic number.

10002100003123 is a deficient number, since it is larger than the sum of its proper divisors (169652934077).

10002100003123 is an equidigital number, since it uses as much as digits as its factorization.

10002100003123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096981.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 10002100003123 its reverse (32130000120001), we get a palindrome (42132100123124).

The spelling of 10002100003123 in words is "ten trillion, two billion, one hundred million, three thousand, one hundred twenty-three".