11123957 has 8 divisors (see below), whose sum is σ = 12027960. Its totient is φ = 10226880.

The previous prime is 11123953. The next prime is 11123963. The reversal of 11123957 is 75932111.

It can be written as a sum of positive squares in 4 ways, for example, as 1100401 + 10023556 = 1049^2 + 3166^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11123957 - 2² = 11123953 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123953) 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, 1907 + ... + 5087.

It is an arithmetic number, because the mean of its divisors is an integer number (1503495).

Almost surely, 2^11123957 is an apocalyptic number.

It is an amenable number.

11123957 is a deficient number, since it is larger than the sum of its proper divisors (904003).

11123957 is a wasteful number, since it uses less digits than its factorization.

11123957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3463.

The product of its digits is 1890, while the sum is 29.

The square root of 11123957 is about 3335.2596600565. The cubic root of 11123957 is about 223.2302781880.

The spelling of 11123957 in words is "eleven million, one hundred twenty-three thousand, nine hundred fifty-seven".