11821234 has 4 divisors (see below), whose sum is σ = 17731854. Its totient is φ = 5910616.

The previous prime is 11821231. The next prime is 11821237. The reversal of 11821234 is 43212811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43212811 = 41 ⋅1053971.

It is an interprime number because it is at equal distance from previous prime (11821231) and next prime (11821237).

It can be written as a sum of positive squares in only one way, i.e., 8982009 + 2839225 = 2997^2 + 1685^2 .

It is not an unprimeable number, because it can be changed into a prime (11821231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2955307 + ... + 2955310.

Almost surely, 2^11821234 is an apocalyptic number.

11821234 is a deficient number, since it is larger than the sum of its proper divisors (5910620).

11821234 is an equidigital number, since it uses as much as digits as its factorization.

11821234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5910619.

The product of its digits is 384, while the sum is 22.

The square root of 11821234 is about 3438.2021464713. The cubic root of 11821234 is about 227.8002893652.

The spelling of 11821234 in words is "eleven million, eight hundred twenty-one thousand, two hundred thirty-four".