312241136516 has 24 divisors (see below), whose sum is σ = 568925591640. Its totient is φ = 149815814400.

The previous prime is 312241136491. The next prime is 312241136521. The reversal of 312241136516 is 615631142213.

It can be written as a sum of positive squares in 4 ways, for example, as 38712136516 + 273529000000 = 196754^2 + 523000^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15595811 + ... + 15615818.

It is an arithmetic number, because the mean of its divisors is an integer number (23705232985).

Almost surely, 2^312241136516 is an apocalyptic number.

It is an amenable number.

312241136516 is a deficient number, since it is larger than the sum of its proper divisors (256684455124).

312241136516 is a wasteful number, since it uses less digits than its factorization.

312241136516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31211735 (or 31211733 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

Adding to 312241136516 its reverse (615631142213), we get a palindrome (927872278729).

The spelling of 312241136516 in words is "three hundred twelve billion, two hundred forty-one million, one hundred thirty-six thousand, five hundred sixteen".