118224131 has 2 divisors, whose sum is σ = 118224132. Its totient is φ = 118224130.

The previous prime is 118224107. The next prime is 118224151. The reversal of 118224131 is 131422811.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118224131 is a prime.

It is a super-2 number, since 2×118224131² = 27953890301410322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 118224097 and 118224106.

It is not a weakly prime, because it can be changed into another prime (118224151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59112065 + 59112066.

It is an arithmetic number, because the mean of its divisors is an integer number (59112066).

Almost surely, 2^118224131 is an apocalyptic number.

118224131 is a deficient number, since it is larger than the sum of its proper divisors (1).

118224131 is an equidigital number, since it uses as much as digits as its factorization.

118224131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 23.

The square root of 118224131 is about 10873.0920625184. The cubic root of 118224131 is about 490.7971627860.

Adding to 118224131 its reverse (131422811), we get a palindrome (249646942).

The spelling of 118224131 in words is "one hundred eighteen million, two hundred twenty-four thousand, one hundred thirty-one".