2100203023 has 2 divisors, whose sum is σ = 2100203024. Its totient is φ = 2100203022.

The previous prime is 2100203009. The next prime is 2100203047. The reversal of 2100203023 is 3203020012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100203023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2100202994 and 2100203012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100206023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050101511 + 1050101512.

It is an arithmetic number, because the mean of its divisors is an integer number (1050101512).

Almost surely, 2^2100203023 is an apocalyptic number.

2100203023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100203023 is an equidigital number, since it uses as much as digits as its factorization.

2100203023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2100203023 is about 45827.9720585583. The cubic root of 2100203023 is about 1280.6204314392.

Adding to 2100203023 its reverse (3203020012), we get a palindrome (5303223035).

The spelling of 2100203023 in words is "two billion, one hundred million, two hundred three thousand, twenty-three".