248720011 has 2 divisors, whose sum is σ = 248720012. Its totient is φ = 248720010.

The previous prime is 248719973. The next prime is 248720033. The reversal of 248720011 is 110027842.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248720011 is a prime.

It is not a weakly prime, because it can be changed into another prime (248720111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124360005 + 124360006.

It is an arithmetic number, because the mean of its divisors is an integer number (124360006).

Almost surely, 2^248720011 is an apocalyptic number.

248720011 is a deficient number, since it is larger than the sum of its proper divisors (1).

248720011 is an equidigital number, since it uses as much as digits as its factorization.

248720011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 248720011 is about 15770.8595517175. The cubic root of 248720011 is about 628.8835614591.

Adding to 248720011 its reverse (110027842), we get a palindrome (358747853).

The spelling of 248720011 in words is "two hundred forty-eight million, seven hundred twenty thousand, eleven".