31544424115345 has 32 divisors (see below), whose sum is σ = 38336773668480. Its totient is φ = 24914704742400.

The previous prime is 31544424115339. The next prime is 31544424115397. The reversal of 31544424115345 is 54351142444513.

It is not a de Polignac number, because 31544424115345 - 2¹¹ = 31544424113297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31544424115295 and 31544424115304.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 480922642 + ... + 480988228.

It is an arithmetic number, because the mean of its divisors is an integer number (1198024177140).

Almost surely, 2^{31544424115345} is an apocalyptic number.

It is an amenable number.

31544424115345 is a deficient number, since it is larger than the sum of its proper divisors (6792349553135).

31544424115345 is a wasteful number, since it uses less digits than its factorization.

31544424115345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68385.

The product of its digits is 2304000, while the sum is 46.

Adding to 31544424115345 its reverse (54351142444513), we get a palindrome (85895566559858).

The spelling of 31544424115345 in words is "thirty-one trillion, five hundred forty-four billion, four hundred twenty-four million, one hundred fifteen thousand, three hundred forty-five".