2113453420 has 24 divisors (see below), whose sum is σ = 4779656784. Its totient is φ = 780351936.

The previous prime is 2113453373. The next prime is 2113453421. The reversal of 2113453420 is 243543112.

It is not an unprimeable number, because it can be changed into a prime (2113453421) 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, 4064074 + ... + 4064593.

It is an arithmetic number, because the mean of its divisors is an integer number (199152366).

Almost surely, 2^2113453420 is an apocalyptic number.

2113453420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113453420 is an abundant number, since it is smaller than the sum of its proper divisors (2666203364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2113453420 is a wasteful number, since it uses less digits than its factorization.

2113453420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8128689 (or 8128687 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2113453420 is about 45972.3114493931. The cubic root of 2113453420 is about 1283.3079760361.

Adding to 2113453420 its reverse (243543112), we get a palindrome (2356996532).

The spelling of 2113453420 in words is "two billion, one hundred thirteen million, four hundred fifty-three thousand, four hundred twenty".