2113243412 has 96 divisors (see below), whose sum is σ = 4587528960. Its totient is φ = 831283200.

The previous prime is 2113243357. The next prime is 2113243417. The reversal of 2113243412 is 2143423112.

It is a super-2 number, since 2×2113243412² = 8931595436722803488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113243417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3515912 + ... + 3516512.

It is an arithmetic number, because the mean of its divisors is an integer number (47786760).

Almost surely, 2^2113243412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2113243412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2293764480).

2113243412 is an abundant number, since it is smaller than the sum of its proper divisors (2474285548).

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

2113243412 is a wasteful number, since it uses less digits than its factorization.

2113243412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801 (or 799 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 2113243412 is about 45970.0273221585. The cubic root of 2113243412 is about 1283.2654683777.

Adding to 2113243412 its reverse (2143423112), we get a palindrome (4256666524).

The spelling of 2113243412 in words is "two billion, one hundred thirteen million, two hundred forty-three thousand, four hundred twelve".