116311005 has 16 divisors (see below), whose sum is σ = 206775360. Its totient is φ = 62032464.

The previous prime is 116311003. The next prime is 116311021. The reversal of 116311005 is 500113611.

116311005 = T₁₆₅₄ + T₁₆₅₅ + ... + T₁₇₃₄.

It is not a de Polignac number, because 116311005 - 2¹ = 116311003 is a prime.

It is a super-2 number, since 2×116311005² = 27056499768220050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116311003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430647 + ... + 430916.

It is an arithmetic number, because the mean of its divisors is an integer number (12923460).

Almost surely, 2^116311005 is an apocalyptic number.

116311005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

116311005 is a deficient number, since it is larger than the sum of its proper divisors (90464355).

116311005 is an equidigital number, since it uses as much as digits as its factorization.

116311005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861577 (or 861571 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 116311005 is about 10784.7579945032. The cubic root of 116311005 is about 488.1353609207.

Adding to 116311005 its reverse (500113611), we get a palindrome (616424616).

The spelling of 116311005 in words is "one hundred sixteen million, three hundred eleven thousand, five".