2100613043 has 4 divisors (see below), whose sum is σ = 2100823368. Its totient is φ = 2100402720.

The previous prime is 2100613037. The next prime is 2100613079. The reversal of 2100613043 is 3403160012.

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

It is a cyclic number.

It is not a de Polignac number, because 2100613043 - 2⁴ = 2100613027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100613013) 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, 89393 + ... + 110418.

It is an arithmetic number, because the mean of its divisors is an integer number (525205842).

Almost surely, 2^2100613043 is an apocalyptic number.

2100613043 is a deficient number, since it is larger than the sum of its proper divisors (210325).

2100613043 is a wasteful number, since it uses less digits than its factorization.

2100613043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210324.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2100613043 is about 45832.4453089730. The cubic root of 2100613043 is about 1280.7037639896.

Adding to 2100613043 its reverse (3403160012), we get a palindrome (5503773055).

The spelling of 2100613043 in words is "two billion, one hundred million, six hundred thirteen thousand, forty-three".