20313132536015 has 8 divisors (see below), whose sum is σ = 26591737138128. Its totient is φ = 14773187298880.

The previous prime is 20313132535987. The next prime is 20313132536027. The reversal of 20313132536015 is 51063523131302.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-20313132536015 is a prime.

It is a super-2 number, since 2×20313132536015² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 184664841182 + ... + 184664841291.

It is an arithmetic number, because the mean of its divisors is an integer number (3323967142266).

Almost surely, 2^{20313132536015} is an apocalyptic number.

20313132536015 is a deficient number, since it is larger than the sum of its proper divisors (6278604602113).

20313132536015 is a wasteful number, since it uses less digits than its factorization.

20313132536015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369329682489.

The product of its (nonzero) digits is 48600, while the sum is 35.

Adding to 20313132536015 its reverse (51063523131302), we get a palindrome (71376655667317).

The spelling of 20313132536015 in words is "twenty trillion, three hundred thirteen billion, one hundred thirty-two million, five hundred thirty-six thousand, fifteen".