2100104003 has 2 divisors, whose sum is σ = 2100104004. Its totient is φ = 2100104002.

The previous prime is 2100103949. The next prime is 2100104011. The reversal of 2100104003 is 3004010012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100104003 - 2¹⁶ = 2100038467 is a prime.

It is not a weakly prime, because it can be changed into another prime (2100104023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050052001 + 1050052002.

It is an arithmetic number, because the mean of its divisors is an integer number (1050052002).

Almost surely, 2^2100104003 is an apocalyptic number.

2100104003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100104003 is an equidigital number, since it uses as much as digits as its factorization.

2100104003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2100104003 is about 45826.8917012708. The cubic root of 2100104003 is about 1280.6003049679.

Adding to 2100104003 its reverse (3004010012), we get a palindrome (5104114015).

The spelling of 2100104003 in words is "two billion, one hundred million, one hundred four thousand, three".