21112030313 has 8 divisors (see below), whose sum is σ = 23308792416. Its totient is φ = 18961516000.

The previous prime is 21112030283. The next prime is 21112030321. The reversal of 21112030313 is 31303021112.

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

It is not a de Polignac number, because 21112030313 - 2³⁰ = 20038288489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21112030291 and 21112030300.

It is not an unprimeable number, because it can be changed into a prime (21112030343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11560988 + ... + 11562813.

It is an arithmetic number, because the mean of its divisors is an integer number (2913599052).

Almost surely, 2^21112030313 is an apocalyptic number.

It is an amenable number.

21112030313 is a deficient number, since it is larger than the sum of its proper divisors (2196762103).

21112030313 is a wasteful number, since it uses less digits than its factorization.

21112030313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23123895.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21112030313 its reverse (31303021112), we get a palindrome (52415051425).

The spelling of 21112030313 in words is "twenty-one billion, one hundred twelve million, thirty thousand, three hundred thirteen".