118243511 has 2 divisors, whose sum is σ = 118243512. Its totient is φ = 118243510.

The previous prime is 118243459. The next prime is 118243513. The reversal of 118243511 is 115342811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118243511 - 2¹⁴ = 118227127 is a prime.

Together with 118243513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118243513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59121755 + 59121756.

It is an arithmetic number, because the mean of its divisors is an integer number (59121756).

Almost surely, 2^118243511 is an apocalyptic number.

118243511 is a deficient number, since it is larger than the sum of its proper divisors (1).

118243511 is an equidigital number, since it uses as much as digits as its factorization.

118243511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 26.

The square root of 118243511 is about 10873.9832168346. The cubic root of 118243511 is about 490.8239794469.

The spelling of 118243511 in words is "one hundred eighteen million, two hundred forty-three thousand, five hundred eleven".