20115310213332 has 36 divisors (see below), whose sum is σ = 50931638255316. Its totient is φ = 6693946819200.

The previous prime is 20115310213283. The next prime is 20115310213379. The reversal of 20115310213332 is 23331201351102.

20115310213332 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 5 + 310 + 2 + 13 + 332 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14956751820816 + 5158558392516 = 3867396^2 + 2271246^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 20115310213296 and 20115310213305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 464835783 + ... + 464879054.

Almost surely, 2^{20115310213332} is an apocalyptic number.

It is an amenable number.

20115310213332 is an abundant number, since it is smaller than the sum of its proper divisors (30816328041984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20115310213332 is a wasteful number, since it uses less digits than its factorization.

20115310213332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929715448 (or 929715443 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 20115310213332 its reverse (23331201351102), we get a palindrome (43446511564434).

The spelling of 20115310213332 in words is "twenty trillion, one hundred fifteen billion, three hundred ten million, two hundred thirteen thousand, three hundred thirty-two".