1172120116 has 12 divisors (see below), whose sum is σ = 2052084132. Its totient is φ = 585810368.

The previous prime is 1172120113. The next prime is 1172120179. The reversal of 1172120116 is 6110212711.

It can be written as a sum of positive squares in 2 ways, for example, as 226803600 + 945316516 = 15060^2 + 30746^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172120111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51655 + ... + 70798.

It is an arithmetic number, because the mean of its divisors is an integer number (171007011).

Almost surely, 2^1172120116 is an apocalyptic number.

It is an amenable number.

1172120116 is a deficient number, since it is larger than the sum of its proper divisors (879964016).

1172120116 is a wasteful number, since it uses less digits than its factorization.

1172120116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124850 (or 124848 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 22.

The square root of 1172120116 is about 34236.2398052123. The cubic root of 1172120116 is about 1054.3643336463.

Adding to 1172120116 its reverse (6110212711), we get a palindrome (7282332827).

The spelling of 1172120116 in words is "one billion, one hundred seventy-two million, one hundred twenty thousand, one hundred sixteen".