21323301032131 has 6 divisors (see below), whose sum is σ = 24804656302740. Its totient is φ = 18277115170356.

The previous prime is 21323301032119. The next prime is 21323301032149. The reversal of 21323301032131 is 13123010332312.

It is not a de Polignac number, because 21323301032131 - 2²¹ = 21323298934979 is a prime.

It is a super-2 number, since 2×21323301032131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21323301032096 and 21323301032105.

It is not an unprimeable number, because it can be changed into a prime (21323301002131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 217584704361 + ... + 217584704458.

It is an arithmetic number, because the mean of its divisors is an integer number (4134109383790).

Almost surely, 2^{21323301032131} is an apocalyptic number.

21323301032131 is a deficient number, since it is larger than the sum of its proper divisors (3481355270609).

21323301032131 is an equidigital number, since it uses as much as digits as its factorization.

21323301032131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435169408833 (or 435169408826 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 21323301032131 its reverse (13123010332312), we get a palindrome (34446311364443).

The spelling of 21323301032131 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred one million, thirty-two thousand, one hundred thirty-one".