2101515343 has 2 divisors, whose sum is σ = 2101515344. Its totient is φ = 2101515342.

The previous prime is 2101515341. The next prime is 2101515391. The reversal of 2101515343 is 3435151012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101515343 - 2¹ = 2101515341 is a prime.

Together with 2101515341, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101515341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050757671 + 1050757672.

It is an arithmetic number, because the mean of its divisors is an integer number (1050757672).

Almost surely, 2^2101515343 is an apocalyptic number.

2101515343 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101515343 is an equidigital number, since it uses as much as digits as its factorization.

2101515343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2101515343 is about 45842.2877156016. The cubic root of 2101515343 is about 1280.8871094489.

Adding to 2101515343 its reverse (3435151012), we get a palindrome (5536666355).

The spelling of 2101515343 in words is "two billion, one hundred one million, five hundred fifteen thousand, three hundred forty-three".