2113420530 has 128 divisors (see below), whose sum is σ = 5737132800. Its totient is φ = 494613504.

The previous prime is 2113420469. The next prime is 2113420553. The reversal of 2113420530 is 350243112.

It is a junction number, because it is equal to n+sod(n) for n = 2113420497 and 2113420506.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 756376 + ... + 759164.

It is an arithmetic number, because the mean of its divisors is an integer number (44821350).

Almost surely, 2^2113420530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2113420530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2868566400).

2113420530 is an abundant number, since it is smaller than the sum of its proper divisors (3623712270).

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

2113420530 is a wasteful number, since it uses less digits than its factorization.

2113420530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2113420530 is about 45971.9537326836. The cubic root of 2113420530 is about 1283.3013189667.

Adding to 2113420530 its reverse (350243112), we get a palindrome (2463663642).

The spelling of 2113420530 in words is "two billion, one hundred thirteen million, four hundred twenty thousand, five hundred thirty".