2113163400 has 96 divisors (see below), whose sum is σ = 6629888160. Its totient is φ = 556707840.

The previous prime is 2113163399. The next prime is 2113163407. The reversal of 2113163400 is 43613112.

It is not an unprimeable number, because it can be changed into a prime (2113163407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28584 + ... + 71016.

It is an arithmetic number, because the mean of its divisors is an integer number (69061335).

Almost surely, 2^2113163400 is an apocalyptic number.

2113163400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2113163400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3314944080).

2113163400 is an abundant number, since it is smaller than the sum of its proper divisors (4516724760).

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

2113163400 is a wasteful number, since it uses less digits than its factorization.

2113163400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42535 (or 42526 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2113163400 is about 45969.1570512229. The cubic root of 2113163400 is about 1283.2492724310.

Adding to 2113163400 its reverse (43613112), we get a palindrome (2156776512).

The spelling of 2113163400 in words is "two billion, one hundred thirteen million, one hundred sixty-three thousand, four hundred".