1117622131 has 2 divisors, whose sum is σ = 1117622132. Its totient is φ = 1117622130.

The previous prime is 1117622113. The next prime is 1117622179. The reversal of 1117622131 is 1312267111.

Together with previous prime (1117622113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1117622131 is a prime.

It is a super-2 number, since 2×1117622131² = 2498158455401962322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1117622096 and 1117622105.

It is not a weakly prime, because it can be changed into another prime (1117623131) 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, 558811065 + 558811066.

It is an arithmetic number, because the mean of its divisors is an integer number (558811066).

Almost surely, 2^1117622131 is an apocalyptic number.

1117622131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117622131 is an equidigital number, since it uses as much as digits as its factorization.

1117622131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 25.

The square root of 1117622131 is about 33430.8559716918. The cubic root of 1117622131 is about 1037.7633549482.

Adding to 1117622131 its reverse (1312267111), we get a palindrome (2429889242).

The spelling of 1117622131 in words is "one billion, one hundred seventeen million, six hundred twenty-two thousand, one hundred thirty-one".