20315444313116 has 12 divisors (see below), whose sum is σ = 35553424278288. Its totient is φ = 10157323090752.

The previous prime is 20315444313107. The next prime is 20315444313133. The reversal of 20315444313116 is 61131344451302.

It is a self number, because there is not a number n which added to its sum of digits gives 20315444313116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99651896 + ... + 99855551.

It is an arithmetic number, because the mean of its divisors is an integer number (2962785356524).

Almost surely, 2^{20315444313116} is an apocalyptic number.

It is an amenable number.

20315444313116 is a deficient number, since it is larger than the sum of its proper divisors (15237979965172).

20315444313116 is a wasteful number, since it uses less digits than its factorization.

20315444313116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199532908 (or 199532906 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 20315444313116 its reverse (61131344451302), we get a palindrome (81446788764418).

The spelling of 20315444313116 in words is "twenty trillion, three hundred fifteen billion, four hundred forty-four million, three hundred thirteen thousand, one hundred sixteen".