11823031 has 6 divisors (see below), whose sum is σ = 12995696. Its totient is φ = 10748100.

The previous prime is 11823023. The next prime is 11823037. The reversal of 11823031 is 13032811.

It is not a de Polignac number, because 11823031 - 2³ = 11823023 is a prime.

It is a super-2 number, since 2×11823031² = 279568124053922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11823037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48735 + ... + 48976.

Almost surely, 2^11823031 is an apocalyptic number.

11823031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11823031 is a deficient number, since it is larger than the sum of its proper divisors (1172665).

11823031 is an equidigital number, since it uses as much as digits as its factorization.

11823031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97733 (or 97722 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 11823031 is about 3438.4634649797. The cubic root of 11823031 is about 227.8118317693.

Adding to 11823031 its reverse (13032811), we get a palindrome (24855842).

The spelling of 11823031 in words is "eleven million, eight hundred twenty-three thousand, thirty-one".