117211043 has 2 divisors, whose sum is σ = 117211044. Its totient is φ = 117211042.

The previous prime is 117211027. The next prime is 117211049. The reversal of 117211043 is 340112711.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117211043 - 2⁴ = 117211027 is a prime.

It is a super-2 number, since 2×117211043² = 27476857202295698, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (117211049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58605521 + 58605522.

It is an arithmetic number, because the mean of its divisors is an integer number (58605522).

Almost surely, 2^117211043 is an apocalyptic number.

117211043 is a deficient number, since it is larger than the sum of its proper divisors (1).

117211043 is an equidigital number, since it uses as much as digits as its factorization.

117211043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 117211043 is about 10826.4048972870. The cubic root of 117211043 is about 489.3912236998.

Adding to 117211043 its reverse (340112711), we get a palindrome (457323754).

The spelling of 117211043 in words is "one hundred seventeen million, two hundred eleven thousand, forty-three".