10001001002103 has 36 divisors (see below), whose sum is σ = 14523367972048. Its totient is φ = 6631748847360.

The previous prime is 10001001002087. The next prime is 10001001002129. The reversal of 10001001002103 is 30120010010001.

It is not a de Polignac number, because 10001001002103 - 2⁴ = 10001001002087 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001001002303) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 410925951 + ... + 410950287.

Almost surely, 2^{10001001002103} is an apocalyptic number.

10001001002103 is a deficient number, since it is larger than the sum of its proper divisors (4522366969945).

10001001002103 is an equidigital number, since it uses as much as digits as its factorization.

10001001002103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25512 (or 25240 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 10001001002103 its reverse (30120010010001), we get a palindrome (40121011012104).

The spelling of 10001001002103 in words is "ten trillion, one billion, one million, two thousand, one hundred three".