20315444313115 has 8 divisors (see below), whose sum is σ = 27861180772320. Its totient is φ = 13930590386112.

The previous prime is 20315444313107. The next prime is 20315444313133. The reversal of 20315444313115 is 51131344451302.

It is a happy number.

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 20315444313115 - 2³ = 20315444313107 is a prime.

It is a super-2 number, since 2×20315444313115² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290220633010 + ... + 290220633079.

It is an arithmetic number, because the mean of its divisors is an integer number (3482647596540).

Almost surely, 2^{20315444313115} is an apocalyptic number.

20315444313115 is a deficient number, since it is larger than the sum of its proper divisors (7545736459205).

20315444313115 is an equidigital number, since it uses as much as digits as its factorization.

20315444313115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580441266101.

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

Adding to 20315444313115 its reverse (51131344451302), we get a palindrome (71446788764417).

The spelling of 20315444313115 in words is "twenty trillion, three hundred fifteen billion, four hundred forty-four million, three hundred thirteen thousand, one hundred fifteen".