11722113 has 12 divisors (see below), whose sum is σ = 18234580. Its totient is φ = 7213536.

The previous prime is 11722097. The next prime is 11722127. The reversal of 11722113 is 31122711.

It is a happy number.

11722113 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1912689 + 9809424 = 1383^2 + 3132^2 .

It is not a de Polignac number, because 11722113 - 2⁴ = 11722097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11722133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49978 + ... + 50211.

Almost surely, 2^11722113 is an apocalyptic number.

11722113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11722113 is a deficient number, since it is larger than the sum of its proper divisors (6512467).

11722113 is a wasteful number, since it uses less digits than its factorization.

11722113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100208 (or 100205 counting only the distinct ones).

The product of its digits is 84, while the sum is 18.

The square root of 11722113 is about 3423.7571467614. The cubic root of 11722113 is about 227.1617999425.

Adding to 11722113 its reverse (31122711), we get a palindrome (42844824).

The spelling of 11722113 in words is "eleven million, seven hundred twenty-two thousand, one hundred thirteen".