2101301243 has 4 divisors (see below), whose sum is σ = 2101394808. Its totient is φ = 2101207680.

The previous prime is 2101301197. The next prime is 2101301261. The reversal of 2101301243 is 3421031012.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2101301243 - 2⁸ = 2101300987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101301273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9380 + ... + 65502.

It is an arithmetic number, because the mean of its divisors is an integer number (525348702).

Almost surely, 2^2101301243 is an apocalyptic number.

2101301243 is a deficient number, since it is larger than the sum of its proper divisors (93565).

2101301243 is an equidigital number, since it uses as much as digits as its factorization.

2101301243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93564.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2101301243 is about 45839.9524759789. The cubic root of 2101301243 is about 1280.8436095296.

Adding to 2101301243 its reverse (3421031012), we get a palindrome (5522332255).

The spelling of 2101301243 in words is "two billion, one hundred one million, three hundred one thousand, two hundred forty-three".