21231122310313 has 8 divisors (see below), whose sum is σ = 21437362558976. Its totient is φ = 21024884232000.

The previous prime is 21231122310301. The next prime is 21231122310331. The reversal of 21231122310313 is 31301322113212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21231122310313 - 2⁹ = 21231122309801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21231122310383) 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 7 ways as a sum of consecutive naturals, for example, 24868888 + ... + 25708438.

It is an arithmetic number, because the mean of its divisors is an integer number (2679670319872).

Almost surely, 2^{21231122310313} is an apocalyptic number.

It is an amenable number.

21231122310313 is a deficient number, since it is larger than the sum of its proper divisors (206240248663).

21231122310313 is a wasteful number, since it uses less digits than its factorization.

21231122310313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085175.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21231122310313 its reverse (31301322113212), we get a palindrome (52532444423525).

The spelling of 21231122310313 in words is "twenty-one trillion, two hundred thirty-one billion, one hundred twenty-two million, three hundred ten thousand, three hundred thirteen".