20132322312515 has 32 divisors (see below), whose sum is σ = 29681568184320. Its totient is φ = 12800176239744.

The previous prime is 20132322312511. The next prime is 20132322312521. The reversal of 20132322312515 is 51521322323102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20132322312515 - 2² = 20132322312511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20132322312511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322034372 + ... + 322096881.

It is an arithmetic number, because the mean of its divisors is an integer number (927549005760).

Almost surely, 2^{20132322312515} is an apocalyptic number.

20132322312515 is a deficient number, since it is larger than the sum of its proper divisors (9549245871805).

20132322312515 is a wasteful number, since it uses less digits than its factorization.

20132322312515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644131331.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 20132322312515 its reverse (51521322323102), we get a palindrome (71653644635617).

The spelling of 20132322312515 in words is "twenty trillion, one hundred thirty-two billion, three hundred twenty-two million, three hundred twelve thousand, five hundred fifteen".