1118345131 has 2 divisors, whose sum is σ = 1118345132. Its totient is φ = 1118345130.

The previous prime is 1118345117. The next prime is 1118345141. The reversal of 1118345131 is 1315438111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1118345131 - 2⁷ = 1118345003 is a prime.

It is a super-2 number, since 2×1118345131² = 2501391664062814322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1118345131.

It is not a weakly prime, because it can be changed into another prime (1118345141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559172565 + 559172566.

It is an arithmetic number, because the mean of its divisors is an integer number (559172566).

Almost surely, 2^1118345131 is an apocalyptic number.

1118345131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118345131 is an equidigital number, since it uses as much as digits as its factorization.

1118345131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 28.

The square root of 1118345131 is about 33441.6675870089. The cubic root of 1118345131 is about 1037.9870862525.

The spelling of 1118345131 in words is "one billion, one hundred eighteen million, three hundred forty-five thousand, one hundred thirty-one".