2115043307 has 4 divisors (see below), whose sum is σ = 2277738960. Its totient is φ = 1952347656.

The previous prime is 2115043291. The next prime is 2115043309. The reversal of 2115043307 is 7033405112.

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 2115043307 - 2⁴ = 2115043291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115043309) 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, 81347807 + ... + 81347832.

It is an arithmetic number, because the mean of its divisors is an integer number (569434740).

Almost surely, 2^2115043307 is an apocalyptic number.

2115043307 is a deficient number, since it is larger than the sum of its proper divisors (162695653).

2115043307 is a wasteful number, since it uses less digits than its factorization.

2115043307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162695652.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 2115043307 is about 45989.5999873885. The cubic root of 2115043307 is about 1283.6296932850.

Adding to 2115043307 its reverse (7033405112), we get a palindrome (9148448419).

The spelling of 2115043307 in words is "two billion, one hundred fifteen million, forty-three thousand, three hundred seven".