2124040013 has 4 divisors (see below), whose sum is σ = 2134822140. Its totient is φ = 2113257888.

The previous prime is 2124040007. The next prime is 2124040021. The reversal of 2124040013 is 3100404212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1154776324 + 969263689 = 33982^2 + 31133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2124040013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2124039973 and 2124040000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124040033) 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, 5390768 + ... + 5391161.

It is an arithmetic number, because the mean of its divisors is an integer number (533705535).

Almost surely, 2^2124040013 is an apocalyptic number.

It is an amenable number.

2124040013 is a deficient number, since it is larger than the sum of its proper divisors (10782127).

2124040013 is a wasteful number, since it uses less digits than its factorization.

2124040013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10782126.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2124040013 is about 46087.3085892418. The cubic root of 2124040013 is about 1285.4471664115.

Adding to 2124040013 its reverse (3100404212), we get a palindrome (5224444225).

The spelling of 2124040013 in words is "two billion, one hundred twenty-four million, forty thousand, thirteen".