2100523 has 2 divisors, whose sum is σ = 2100524. Its totient is φ = 2100522.

The previous prime is 2100493. The next prime is 2100533. The reversal of 2100523 is 3250012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100523 - 2⁹ = 2100011 is a prime.

It is a d-powerful number, because it can be written as 2 + 1 + 0 + 0 + 5⁵ + 2²¹ + 3⁵ .

It is not a weakly prime, because it can be changed into another prime (2100533) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050261 + 1050262.

It is an arithmetic number, because the mean of its divisors is an integer number (1050262).

2^2100523 is an apocalyptic number.

2100523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100523 is an equidigital number, since it uses as much as digits as its factorization.

2100523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 2100523 is about 1449.3181155288. The cubic root of 2100523 is about 128.0685464561.

Adding to 2100523 its reverse (3250012), we get a palindrome (5350535).

The spelling of 2100523 in words is "two million, one hundred thousand, five hundred twenty-three".