2120413100 has 72 divisors (see below), whose sum is σ = 4964869728. Its totient is φ = 781401600.

The previous prime is 2120413093. The next prime is 2120413103. The reversal of 2120413100 is 13140212.

It is a super-2 number, since 2×2120413100² = 8992303429303220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2120413103) 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, 839840 + ... + 842360.

It is an arithmetic number, because the mean of its divisors is an integer number (68956524).

Almost surely, 2^2120413100 is an apocalyptic number.

2120413100 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 2120413100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2482434864).

2120413100 is an abundant number, since it is smaller than the sum of its proper divisors (2844456628).

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

2120413100 is a wasteful number, since it uses less digits than its factorization.

2120413100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195 (or 3188 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2120413100 is about 46047.9434937110. The cubic root of 2120413100 is about 1284.7150927553.

Adding to 2120413100 its reverse (13140212), we get a palindrome (2133553312).

The spelling of 2120413100 in words is "two billion, one hundred twenty million, four hundred thirteen thousand, one hundred".