7116621131 has 8 divisors (see below), whose sum is σ = 7286591664. Its totient is φ = 6946853760.

The previous prime is 7116621119. The next prime is 7116621151. The reversal of 7116621131 is 1311266117.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7116621131 is a prime.

It is a super-2 number, since 2×7116621131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7116621094 and 7116621103.

It is not an unprimeable number, because it can be changed into a prime (7116621151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21311 + ... + 121191.

It is an arithmetic number, because the mean of its divisors is an integer number (910823958).

Almost surely, 2^7116621131 is an apocalyptic number.

7116621131 is a deficient number, since it is larger than the sum of its proper divisors (169970533).

7116621131 is a wasteful number, since it uses less digits than its factorization.

7116621131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101581.

The product of its digits is 1512, while the sum is 29.

The square root of 7116621131 is about 84360.0683439742. The cubic root of 7116621131 is about 1923.4959753376.

Adding to 7116621131 its reverse (1311266117), we get a palindrome (8427887248).

The spelling of 7116621131 in words is "seven billion, one hundred sixteen million, six hundred twenty-one thousand, one hundred thirty-one".