11157823 has 2 divisors, whose sum is σ = 11157824. Its totient is φ = 11157822.

The previous prime is 11157803. The next prime is 11157827. The reversal of 11157823 is 32875111.

11157823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11157823 - 2⁵ = 11157791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11157791 and 11157800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11157827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5578911 + 5578912.

It is an arithmetic number, because the mean of its divisors is an integer number (5578912).

Almost surely, 2^11157823 is an apocalyptic number.

11157823 is a deficient number, since it is larger than the sum of its proper divisors (1).

11157823 is an equidigital number, since it uses as much as digits as its factorization.

11157823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 28.

The square root of 11157823 is about 3340.3327678541. The cubic root of 11157823 is about 223.4565842796.

The spelling of 11157823 in words is "eleven million, one hundred fifty-seven thousand, eight hundred twenty-three".