2015012343 has 4 divisors (see below), whose sum is σ = 2686683128. Its totient is φ = 1343341560.

The previous prime is 2015012291. The next prime is 2015012371. The reversal of 2015012343 is 3432105102.

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

It is not a de Polignac number, because 2015012343 - 2¹⁶ = 2014946807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015012393) 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, 335835388 + ... + 335835393.

It is an arithmetic number, because the mean of its divisors is an integer number (671670782).

Almost surely, 2^2015012343 is an apocalyptic number.

2015012343 is a deficient number, since it is larger than the sum of its proper divisors (671670785).

2015012343 is an equidigital number, since it uses as much as digits as its factorization.

2015012343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671670784.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2015012343 is about 44888.8888590484. Note that the first 4 decimals coincide. The cubic root of 2015012343 is about 1263.0655896438.

Adding to 2015012343 its reverse (3432105102), we get a palindrome (5447117445).

The spelling of 2015012343 in words is "two billion, fifteen million, twelve thousand, three hundred forty-three".