2113312302 has 128 divisors (see below), whose sum is σ = 5007744000. Its totient is φ = 659594880.

The previous prime is 2113312261. The next prime is 2113312309. The reversal of 2113312302 is 2032133112.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113312309) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9228324 + ... + 9228552.

It is an arithmetic number, because the mean of its divisors is an integer number (39123000).

Almost surely, 2^2113312302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2113312302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2503872000).

2113312302 is an abundant number, since it is smaller than the sum of its proper divisors (2894431698).

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

2113312302 is a wasteful number, since it uses less digits than its factorization.

2113312302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2113312302 is about 45970.7766086239. The cubic root of 2113312302 is about 1283.2794126930.

Adding to 2113312302 its reverse (2032133112), we get a palindrome (4145445414).

The spelling of 2113312302 in words is "two billion, one hundred thirteen million, three hundred twelve thousand, three hundred two".