21232310330113 has 4 divisors (see below), whose sum is σ = 21232537247680. Its totient is φ = 21232083412548.

The previous prime is 21232310330047. The next prime is 21232310330123. The reversal of 21232310330113 is 31103301323212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21232310330113 is a prime.

It is a super-2 number, since 2×21232310330113² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21232310330123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113318373 + ... + 113505586.

It is an arithmetic number, because the mean of its divisors is an integer number (5308134311920).

Almost surely, 2^{21232310330113} is an apocalyptic number.

It is an amenable number.

21232310330113 is a deficient number, since it is larger than the sum of its proper divisors (226917567).

21232310330113 is an equidigital number, since it uses as much as digits as its factorization.

21232310330113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226917566.

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

Adding to 21232310330113 its reverse (31103301323212), we get a palindrome (52335611653325).

The spelling of 21232310330113 in words is "twenty-one trillion, two hundred thirty-two billion, three hundred ten million, three hundred thirty thousand, one hundred thirteen".