1123881 has 8 divisors (see below), whose sum is σ = 1634784. Its totient is φ = 681120.

The previous prime is 1123879. The next prime is 1123883. The reversal of 1123881 is 1883211.

It is an interprime number because it is at equal distance from previous prime (1123879) and next prime (1123883).

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

It is not a de Polignac number, because 1123881 - 2¹ = 1123879 is a prime.

It is a super-2 number, since 2×1123881² = 2526217004322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1123883) 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, 16996 + ... + 17061.

It is an arithmetic number, because the mean of its divisors is an integer number (204348).

2^1123881 is an apocalyptic number.

1123881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1123881 is a deficient number, since it is larger than the sum of its proper divisors (510903).

1123881 is a wasteful number, since it uses less digits than its factorization.

1123881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34071.

The product of its digits is 384, while the sum is 24.

The square root of 1123881 is about 1060.1325388837. The cubic root of 1123881 is about 103.9696965458.

It can be divided in two parts, 112 and 3881, that added together give a palindrome (3993).

The spelling of 1123881 in words is "one million, one hundred twenty-three thousand, eight hundred eighty-one".