20315111413265 has 8 divisors (see below), whose sum is σ = 24378225127488. Its totient is φ = 16252028176240.

The previous prime is 20315111413241. The next prime is 20315111413277. The reversal of 20315111413265 is 56231411151302.

It is a happy number.

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

It is not a de Polignac number, because 20315111413265 - 2¹² = 20315111409169 is a prime.

It is a Duffinian number.

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, 6126251 + ... + 8840880.

It is an arithmetic number, because the mean of its divisors is an integer number (3047278140936).

Almost surely, 2^{20315111413265} is an apocalyptic number.

It is an amenable number.

20315111413265 is a deficient number, since it is larger than the sum of its proper divisors (4063113714223).

20315111413265 is a wasteful number, since it uses less digits than its factorization.

20315111413265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15238599.

The product of its (nonzero) digits is 21600, while the sum is 35.

Adding to 20315111413265 its reverse (56231411151302), we get a palindrome (76546522564567).

The spelling of 20315111413265 in words is "twenty trillion, three hundred fifteen billion, one hundred eleven million, four hundred thirteen thousand, two hundred sixty-five".