1172868211 has 2 divisors, whose sum is σ = 1172868212. Its totient is φ = 1172868210.

The previous prime is 1172868209. The next prime is 1172868223. The reversal of 1172868211 is 1128682711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1172868211 - 2¹ = 1172868209 is a prime.

Together with 1172868209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1172868311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586434105 + 586434106.

It is an arithmetic number, because the mean of its divisors is an integer number (586434106).

Almost surely, 2^1172868211 is an apocalyptic number.

1172868211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172868211 is an equidigital number, since it uses as much as digits as its factorization.

1172868211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 37.

The square root of 1172868211 is about 34247.1635467815. The cubic root of 1172868211 is about 1054.5885987557.

The spelling of 1172868211 in words is "one billion, one hundred seventy-two million, eight hundred sixty-eight thousand, two hundred eleven".