1117509131 has 2 divisors, whose sum is σ = 1117509132. Its totient is φ = 1117509130.

The previous prime is 1117509101. The next prime is 1117509143. The reversal of 1117509131 is 1319057111.

It is a strong prime.

It is an emirp because it is prime and its reverse (1319057111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1117509131 - 2²² = 1113314827 is a prime.

It is a super-2 number, since 2×1117509131² = 2497653315736750322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1117509094 and 1117509103.

It is not a weakly prime, because it can be changed into another prime (1117509101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558754565 + 558754566.

It is an arithmetic number, because the mean of its divisors is an integer number (558754566).

Almost surely, 2^1117509131 is an apocalyptic number.

1117509131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117509131 is an equidigital number, since it uses as much as digits as its factorization.

1117509131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 945, while the sum is 29.

The square root of 1117509131 is about 33429.1658735303. The cubic root of 1117509131 is about 1037.7283785436.

The spelling of 1117509131 in words is "one billion, one hundred seventeen million, five hundred nine thousand, one hundred thirty-one".