21313113300131 has 4 divisors (see below), whose sum is σ = 21314829206064. Its totient is φ = 21311397394200.

The previous prime is 21313113300113. The next prime is 21313113300169. The reversal of 21313113300131 is 13100331131312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21313113300131 - 2¹⁴ = 21313113283747 is a prime.

It is a super-2 number, since 2×21313113300131² (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 = 21313113300097 and 21313113300106.

It is not an unprimeable number, because it can be changed into a prime (21313113300181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857934335 + ... + 857959176.

It is an arithmetic number, because the mean of its divisors is an integer number (5328707301516).

Almost surely, 2^{21313113300131} is an apocalyptic number.

21313113300131 is a deficient number, since it is larger than the sum of its proper divisors (1715905933).

21313113300131 is a wasteful number, since it uses less digits than its factorization.

21313113300131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715905932.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 21313113300131 its reverse (13100331131312), we get a palindrome (34413444431443).

The spelling of 21313113300131 in words is "twenty-one trillion, three hundred thirteen billion, one hundred thirteen million, three hundred thousand, one hundred thirty-one".