15313231316 has 24 divisors (see below), whose sum is σ = 27294107904. Its totient is φ = 7515910080.

The previous prime is 15313231313. The next prime is 15313231333. The reversal of 15313231316 is 61313231351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15313231313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62660 + ... + 185883.

It is an arithmetic number, because the mean of its divisors is an integer number (1137254496).

Almost surely, 2^15313231316 is an apocalyptic number.

It is an amenable number.

15313231316 is a deficient number, since it is larger than the sum of its proper divisors (11980876588).

15313231316 is a wasteful number, since it uses less digits than its factorization.

15313231316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248831 (or 248829 counting only the distinct ones).

The product of its digits is 4860, while the sum is 29.

Adding to 15313231316 its reverse (61313231351), we get a palindrome (76626462667).

The spelling of 15313231316 in words is "fifteen billion, three hundred thirteen million, two hundred thirty-one thousand, three hundred sixteen".