2013340123 has 2 divisors, whose sum is σ = 2013340124. Its totient is φ = 2013340122.

The previous prime is 2013340117. The next prime is 2013340157. The reversal of 2013340123 is 3210433102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2013340123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2013340123.

It is not a weakly prime, because it can be changed into another prime (2013340103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006670061 + 1006670062.

It is an arithmetic number, because the mean of its divisors is an integer number (1006670062).

Almost surely, 2^2013340123 is an apocalyptic number.

2013340123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013340123 is an equidigital number, since it uses as much as digits as its factorization.

2013340123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2013340123 is about 44870.2587801764. The cubic root of 2013340123 is about 1262.7160949972.

Adding to 2013340123 its reverse (3210433102), we get a palindrome (5223773225).

The spelling of 2013340123 in words is "two billion, thirteen million, three hundred forty thousand, one hundred twenty-three".