2130442243 has 2 divisors, whose sum is σ = 2130442244. Its totient is φ = 2130442242.

The previous prime is 2130442207. The next prime is 2130442253. The reversal of 2130442243 is 3422440312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2130442243 is a prime.

It is not a weakly prime, because it can be changed into another prime (2130442253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065221121 + 1065221122.

It is an arithmetic number, because the mean of its divisors is an integer number (1065221122).

Almost surely, 2^2130442243 is an apocalyptic number.

2130442243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130442243 is an equidigital number, since it uses as much as digits as its factorization.

2130442243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2130442243 is about 46156.7139536601. The cubic root of 2130442243 is about 1286.7373922020.

Adding to 2130442243 its reverse (3422440312), we get a palindrome (5552882555).

The spelling of 2130442243 in words is "two billion, one hundred thirty million, four hundred forty-two thousand, two hundred forty-three".