2013123043 has 8 divisors (see below), whose sum is σ = 2090511360. Its totient is φ = 1936512840.

The previous prime is 2013123023. The next prime is 2013123053. The reversal of 2013123043 is 3403213102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2013123043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2013123043.

It is not an unprimeable number, because it can be changed into a prime (2013123023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189253 + ... + 199606.

It is an arithmetic number, because the mean of its divisors is an integer number (261313920).

Almost surely, 2^2013123043 is an apocalyptic number.

2013123043 is a deficient number, since it is larger than the sum of its proper divisors (77388317).

2013123043 is a wasteful number, since it uses less digits than its factorization.

2013123043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389057.

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

The square root of 2013123043 is about 44867.8397407319. The cubic root of 2013123043 is about 1262.6707110009.

Adding to 2013123043 its reverse (3403213102), we get a palindrome (5416336145).

The spelling of 2013123043 in words is "two billion, thirteen million, one hundred twenty-three thousand, forty-three".