118986811 has 2 divisors, whose sum is σ = 118986812. Its totient is φ = 118986810.

The previous prime is 118986793. The next prime is 118986823. The reversal of 118986811 is 118689811.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (118689811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118986811 - 2¹⁷ = 118855739 is a prime.

It is a super-2 number, since 2×118986811² = 28315722383899442, which contains 22 as substring.

118986811 is a strobogrammatic number because it is the same when read upside-down.

It is not a weakly prime, because it can be changed into another prime (118986611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59493405 + 59493406.

It is an arithmetic number, because the mean of its divisors is an integer number (59493406).

Almost surely, 2^118986811 is an apocalyptic number.

118986811 is a deficient number, since it is larger than the sum of its proper divisors (1).

118986811 is an equidigital number, since it uses as much as digits as its factorization.

118986811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 43.

The square root of 118986811 is about 10908.1075810610. The cubic root of 118986811 is about 491.8503011966.

The spelling of 118986811 in words is "one hundred eighteen million, nine hundred eighty-six thousand, eight hundred eleven".