2113412321 has 8 divisors (see below), whose sum is σ = 2182348800. Its totient is φ = 2044523520.

The previous prime is 2113412309. The next prime is 2113412333. The reversal of 2113412321 is 1232143112.

It is an interprime number because it is at equal distance from previous prime (2113412309) and next prime (2113412333).

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-2113412321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2113412293 and 2113412302.

It is not an unprimeable number, because it can be changed into a prime (2113402321) 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, 92960 + ... + 113438.

It is an arithmetic number, because the mean of its divisors is an integer number (272793600).

Almost surely, 2^2113412321 is an apocalyptic number.

It is an amenable number.

2113412321 is a deficient number, since it is larger than the sum of its proper divisors (68936479).

2113412321 is a wasteful number, since it uses less digits than its factorization.

2113412321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23839.

The product of its digits is 288, while the sum is 20.

The square root of 2113412321 is about 45971.8644499002. The cubic root of 2113412321 is about 1283.2996574211.

Adding to 2113412321 its reverse (1232143112), we get a palindrome (3345555433).

The spelling of 2113412321 in words is "two billion, one hundred thirteen million, four hundred twelve thousand, three hundred twenty-one".