2051115340 has 24 divisors (see below), whose sum is σ = 4308276672. Its totient is φ = 820268160.

The previous prime is 2051115329. The next prime is 2051115359. The reversal of 2051115340 is 435111502.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122557 + ... + 138283.

It is an arithmetic number, because the mean of its divisors is an integer number (179511528).

Almost surely, 2^2051115340 is an apocalyptic number.

2051115340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051115340 is an abundant number, since it is smaller than the sum of its proper divisors (2257161332).

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

2051115340 is a wasteful number, since it uses less digits than its factorization.

2051115340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22257 (or 22255 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2051115340 is about 45289.2408856673. The cubic root of 2051115340 is about 1270.5644338374.

Adding to 2051115340 its reverse (435111502), we get a palindrome (2486226842).

The spelling of 2051115340 in words is "two billion, fifty-one million, one hundred fifteen thousand, three hundred forty".