2013247123 has 2 divisors, whose sum is σ = 2013247124. Its totient is φ = 2013247122.

The previous prime is 2013247097. The next prime is 2013247127. The reversal of 2013247123 is 3217423102.

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-2013247123 is a prime.

It is not a weakly prime, because it can be changed into another prime (2013247127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006623561 + 1006623562.

It is an arithmetic number, because the mean of its divisors is an integer number (1006623562).

Almost surely, 2^2013247123 is an apocalyptic number.

2013247123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013247123 is an equidigital number, since it uses as much as digits as its factorization.

2013247123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 2013247123 is about 44869.2224470182. Note that the first 3 decimals coincide. The cubic root of 2013247123 is about 1262.6966522805.

The spelling of 2013247123 in words is "two billion, thirteen million, two hundred forty-seven thousand, one hundred twenty-three".