116511213 has 32 divisors (see below), whose sum is σ = 193923072. Its totient is φ = 60580800.

The previous prime is 116511203. The next prime is 116511223. The reversal of 116511213 is 312115611.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (116511203) and next prime (116511223).

It is not a de Polignac number, because 116511213 - 2¹⁰ = 116510189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 116511213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116511203) 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 in 31 ways as a sum of consecutive naturals, for example, 16378 + ... + 22388.

It is an arithmetic number, because the mean of its divisors is an integer number (6060096).

Almost surely, 2^116511213 is an apocalyptic number.

116511213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

116511213 is a deficient number, since it is larger than the sum of its proper divisors (77411859).

116511213 is a wasteful number, since it uses less digits than its factorization.

116511213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105.

The product of its digits is 180, while the sum is 21.

The square root of 116511213 is about 10794.0359921579. The cubic root of 116511213 is about 488.4152787839.

Adding to 116511213 its reverse (312115611), we get a palindrome (428626824).

The spelling of 116511213 in words is "one hundred sixteen million, five hundred eleven thousand, two hundred thirteen".