2101540307 has 2 divisors, whose sum is σ = 2101540308. Its totient is φ = 2101540306.

The previous prime is 2101540183. The next prime is 2101540327. The reversal of 2101540307 is 7030451012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101540307 - 2²⁸ = 1833104851 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101540327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050770153 + 1050770154.

It is an arithmetic number, because the mean of its divisors is an integer number (1050770154).

Almost surely, 2^2101540307 is an apocalyptic number.

2101540307 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101540307 is an equidigital number, since it uses as much as digits as its factorization.

2101540307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 2101540307 is about 45842.5599961433. The cubic root of 2101540307 is about 1280.8921813350.

Adding to 2101540307 its reverse (7030451012), we get a palindrome (9131991319).

The spelling of 2101540307 in words is "two billion, one hundred one million, five hundred forty thousand, three hundred seven".