2730115123 has 4 divisors (see below), whose sum is σ = 2730221208. Its totient is φ = 2730009040.

The previous prime is 2730115103. The next prime is 2730115133. The reversal of 2730115123 is 3215110372.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2730115123 - 2¹⁷ = 2729984051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2730115103) 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 in 3 ways as a sum of consecutive naturals, for example, 12828 + ... + 74998.

It is an arithmetic number, because the mean of its divisors is an integer number (682555302).

Almost surely, 2^2730115123 is an apocalyptic number.

2730115123 is a deficient number, since it is larger than the sum of its proper divisors (106085).

2730115123 is an equidigital number, since it uses as much as digits as its factorization.

2730115123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106084.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 2730115123 is about 52250.5035669514. The cubic root of 2730115123 is about 1397.6346322078.

Adding to 2730115123 its reverse (3215110372), we get a palindrome (5945225495).

It can be divided in two parts, 27301 and 15123, that added together give a palindrome (42424).

The spelling of 2730115123 in words is "two billion, seven hundred thirty million, one hundred fifteen thousand, one hundred twenty-three".