2101351387 has 2 divisors, whose sum is σ = 2101351388. Its totient is φ = 2101351386.

The previous prime is 2101351333. The next prime is 2101351433. The reversal of 2101351387 is 7831531012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101351387 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101391387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050675693 + 1050675694.

It is an arithmetic number, because the mean of its divisors is an integer number (1050675694).

Almost surely, 2^2101351387 is an apocalyptic number.

2101351387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101351387 is an equidigital number, since it uses as much as digits as its factorization.

2101351387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 2101351387 is about 45840.4994191817. The cubic root of 2101351387 is about 1280.8537978373.

Adding to 2101351387 its reverse (7831531012), we get a palindrome (9932882399).

The spelling of 2101351387 in words is "two billion, one hundred one million, three hundred fifty-one thousand, three hundred eighty-seven".