2113306321 has 8 divisors (see below), whose sum is σ = 2427853824. Its totient is φ = 1801920480.

The previous prime is 2113306253. The next prime is 2113306333. The reversal of 2113306321 is 1236033112.

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 2113306321 - 2⁹ = 2113305809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113306292 and 2113306301.

It is not an unprimeable number, because it can be changed into a prime (2113306381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 788980 + ... + 791653.

It is an arithmetic number, because the mean of its divisors is an integer number (303481728).

Almost surely, 2^2113306321 is an apocalyptic number.

It is an amenable number.

2113306321 is a deficient number, since it is larger than the sum of its proper divisors (314547503).

2113306321 is a wasteful number, since it uses less digits than its factorization.

2113306321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580831.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2113306321 is about 45970.7115563812. The cubic root of 2113306321 is about 1283.2782020656.

Adding to 2113306321 its reverse (1236033112), we get a palindrome (3349339433).

The spelling of 2113306321 in words is "two billion, one hundred thirteen million, three hundred six thousand, three hundred twenty-one".