21142331103313 has 8 divisors (see below), whose sum is σ = 25583997301632. Its totient is φ = 17055998200896.

The previous prime is 21142331103307. The next prime is 21142331103317. The reversal of 21142331103313 is 31330113324112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21142331103313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21142331103317) 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, 88833323845 + ... + 88833324082.

It is an arithmetic number, because the mean of its divisors is an integer number (3197999662704).

Almost surely, 2^{21142331103313} is an apocalyptic number.

It is an amenable number.

21142331103313 is a deficient number, since it is larger than the sum of its proper divisors (4441666198319).

21142331103313 is a wasteful number, since it uses less digits than its factorization.

21142331103313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177666647951.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 21142331103313 its reverse (31330113324112), we get a palindrome (52472444427425).

The spelling of 21142331103313 in words is "twenty-one trillion, one hundred forty-two billion, three hundred thirty-one million, one hundred three thousand, three hundred thirteen".