20132115081 has 16 divisors (see below), whose sum is σ = 28910481600. Its totient is φ = 12387781440.

The previous prime is 20132115067. The next prime is 20132115083. The reversal of 20132115081 is 18051123102.

It is a de Polignac number, because none of the positive numbers 2^k-20132115081 is a prime.

It is a super-2 number, since 2×20132115081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20132115083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536470 + ... + 572768.

It is an arithmetic number, because the mean of its divisors is an integer number (1806905100).

Almost surely, 2^20132115081 is an apocalyptic number.

It is an amenable number.

20132115081 is a deficient number, since it is larger than the sum of its proper divisors (8778366519).

20132115081 is a wasteful number, since it uses less digits than its factorization.

20132115081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50536.

The product of its (nonzero) digits is 480, while the sum is 24.

Adding to 20132115081 its reverse (18051123102), we get a palindrome (38183238183).

The spelling of 20132115081 in words is "twenty billion, one hundred thirty-two million, one hundred fifteen thousand, eighty-one".