1130823 has 24 divisors (see below), whose sum is σ = 1825200. Its totient is φ = 670464.

The previous prime is 1130819. The next prime is 1130827. The reversal of 1130823 is 3280311.

It is an interprime number because it is at equal distance from previous prime (1130819) and next prime (1130827).

It is not a de Polignac number, because 1130823 - 2² = 1130819 is a prime.

1130823 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1130796 and 1130805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2713 + ... + 3101.

It is an arithmetic number, because the mean of its divisors is an integer number (76050).

2^1130823 is an apocalyptic number.

1130823 is a deficient number, since it is larger than the sum of its proper divisors (694377).

1130823 is a wasteful number, since it uses less digits than its factorization.

1130823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1130823 is about 1063.4016174522. The cubic root of 1130823 is about 104.1833243405.

It can be divided in two parts, 1130 and 823, that added together give a triangular number (1953 = T₆₂).

The spelling of 1130823 in words is "one million, one hundred thirty thousand, eight hundred twenty-three".