31421313155363 has 8 divisors (see below), whose sum is σ = 31595648609616. Its totient is φ = 31246985800800.

The previous prime is 31421313155311. The next prime is 31421313155371. The reversal of 31421313155363 is 36355131312413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31421313155363 - 2¹⁸ = 31421312893219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31421313155363.

It is not an unprimeable number, because it can be changed into a prime (31421313155303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5839745 + ... + 9846077.

It is an arithmetic number, because the mean of its divisors is an integer number (3949456076202).

Almost surely, 2^{31421313155363} is an apocalyptic number.

31421313155363 is a deficient number, since it is larger than the sum of its proper divisors (174335454253).

31421313155363 is a wasteful number, since it uses less digits than its factorization.

31421313155363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4049845.

The product of its digits is 291600, while the sum is 41.

Adding to 31421313155363 its reverse (36355131312413), we get a palindrome (67776444467776).

The spelling of 31421313155363 in words is "thirty-one trillion, four hundred twenty-one billion, three hundred thirteen million, one hundred fifty-five thousand, three hundred sixty-three".