2113436321 has 8 divisors (see below), whose sum is σ = 2166531840. Its totient is φ = 2060830512.

The previous prime is 2113436293. The next prime is 2113436363. The reversal of 2113436321 is 1236343112.

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 2113436321 - 2⁶ = 2113436257 is a prime.

It is a super-2 number, since 2×2113436321² = 8933226165844030082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113436371) 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, 113681 + ... + 130958.

It is an arithmetic number, because the mean of its divisors is an integer number (270816480).

Almost surely, 2^2113436321 is an apocalyptic number.

It is an amenable number.

2113436321 is a deficient number, since it is larger than the sum of its proper divisors (53095519).

2113436321 is a wasteful number, since it uses less digits than its factorization.

2113436321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244855.

The product of its digits is 2592, while the sum is 26.

The square root of 2113436321 is about 45972.1254783809. The cubic root of 2113436321 is about 1283.3045151378.

Adding to 2113436321 its reverse (1236343112), we get a palindrome (3349779433).

The spelling of 2113436321 in words is "two billion, one hundred thirteen million, four hundred thirty-six thousand, three hundred twenty-one".