1118137331 has 2 divisors, whose sum is σ = 1118137332. Its totient is φ = 1118137330.

The previous prime is 1118137309. The next prime is 1118137351. The reversal of 1118137331 is 1337318111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1118137331 is a prime.

It is a super-2 number, since 2×1118137331² = 2500462181951607122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1118137294 and 1118137303.

It is not a weakly prime, because it can be changed into another prime (1118137301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559068665 + 559068666.

It is an arithmetic number, because the mean of its divisors is an integer number (559068666).

Almost surely, 2^1118137331 is an apocalyptic number.

1118137331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118137331 is an equidigital number, since it uses as much as digits as its factorization.

1118137331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 29.

The square root of 1118137331 is about 33438.5605401907. The cubic root of 1118137331 is about 1037.9227927199.

The spelling of 1118137331 in words is "one billion, one hundred eighteen million, one hundred thirty-seven thousand, three hundred thirty-one".