2312516345 has 16 divisors (see below), whose sum is σ = 2807425920. Its totient is φ = 1828479744.

The previous prime is 2312516321. The next prime is 2312516357. The reversal of 2312516345 is 5436152132.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2312516345 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277601 + ... + 285809.

It is an arithmetic number, because the mean of its divisors is an integer number (175464120).

Almost surely, 2^2312516345 is an apocalyptic number.

It is an amenable number.

2312516345 is a deficient number, since it is larger than the sum of its proper divisors (494909575).

2312516345 is a wasteful number, since it uses less digits than its factorization.

2312516345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8864.

The product of its digits is 21600, while the sum is 32.

The square root of 2312516345 is about 48088.6301010956. The cubic root of 2312516345 is about 1322.3962337721.

Adding to 2312516345 its reverse (5436152132), we get a palindrome (7748668477).

The spelling of 2312516345 in words is "two billion, three hundred twelve million, five hundred sixteen thousand, three hundred forty-five".