1248218011 has 2 divisors, whose sum is σ = 1248218012. Its totient is φ = 1248218010.

The previous prime is 1248217967. The next prime is 1248218039. The reversal of 1248218011 is 1108128421.

It is an a-pointer prime, because the next prime (1248218039) can be obtained adding 1248218011 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1248218011 - 2⁹ = 1248217499 is a prime.

It is a super-2 number, since 2×1248218011² = 3116096405969592242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1248218071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624109005 + 624109006.

It is an arithmetic number, because the mean of its divisors is an integer number (624109006).

Almost surely, 2^1248218011 is an apocalyptic number.

1248218011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248218011 is an equidigital number, since it uses as much as digits as its factorization.

1248218011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 1248218011 is about 35330.1289411743. The cubic root of 1248218011 is about 1076.7052110517.

The spelling of 1248218011 in words is "one billion, two hundred forty-eight million, two hundred eighteen thousand, eleven".