1249116611 has 2 divisors, whose sum is σ = 1249116612. Its totient is φ = 1249116610.

The previous prime is 1249116607. The next prime is 1249116613. The reversal of 1249116611 is 1166119421.

It is a strong prime.

It is an emirp because it is prime and its reverse (1166119421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1249116611 - 2² = 1249116607 is a prime.

It is a super-2 number, since 2×1249116611² = 3120584615752250642, which contains 22 as substring.

Together with 1249116613, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1249116613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624558305 + 624558306.

It is an arithmetic number, because the mean of its divisors is an integer number (624558306).

Almost surely, 2^1249116611 is an apocalyptic number.

1249116611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249116611 is an equidigital number, since it uses as much as digits as its factorization.

1249116611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 32.

The square root of 1249116611 is about 35342.8438442636. The cubic root of 1249116611 is about 1076.9635246931.

The spelling of 1249116611 in words is "one billion, two hundred forty-nine million, one hundred sixteen thousand, six hundred eleven".