11137823 has 2 divisors, whose sum is σ = 11137824. Its totient is φ = 11137822.

The previous prime is 11137813. The next prime is 11137859. The reversal of 11137823 is 32873111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11137823 - 2¹⁸ = 10875679 is a prime.

It is a super-2 number, since 2×11137823² = 248102202358658, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 11137792 and 11137801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11137813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5568911 + 5568912.

It is an arithmetic number, because the mean of its divisors is an integer number (5568912).

Almost surely, 2^11137823 is an apocalyptic number.

11137823 is a deficient number, since it is larger than the sum of its proper divisors (1).

11137823 is an equidigital number, since it uses as much as digits as its factorization.

11137823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 26.

The square root of 11137823 is about 3337.3377114101. The cubic root of 11137823 is about 223.3229917738.

The spelling of 11137823 in words is "eleven million, one hundred thirty-seven thousand, eight hundred twenty-three".