3131242054516 has 24 divisors (see below), whose sum is σ = 5721016371840. Its totient is φ = 1496739664992.

The previous prime is 3131242054487. The next prime is 3131242054517. The reversal of 3131242054516 is 6154502421313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131242054517) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9043731 + ... + 9383578.

It is an arithmetic number, because the mean of its divisors is an integer number (238375682160).

Almost surely, 2^{3131242054516} is an apocalyptic number.

It is an amenable number.

3131242054516 is a deficient number, since it is larger than the sum of its proper divisors (2589774317324).

3131242054516 is a wasteful number, since it uses less digits than its factorization.

3131242054516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18429183 (or 18429181 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 3131242054516 its reverse (6154502421313), we get a palindrome (9285744475829).

The spelling of 3131242054516 in words is "three trillion, one hundred thirty-one billion, two hundred forty-two million, fifty-four thousand, five hundred sixteen".