11840031 has 24 divisors (see below), whose sum is σ = 19828224. Its totient is φ = 6667920.

The previous prime is 11840029. The next prime is 11840051. The reversal of 11840031 is 13004811.

It is not a de Polignac number, because 11840031 - 2¹ = 11840029 is a prime.

It is a super-2 number, since 2×11840031² = 280372668161922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11839986 and 11840013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11840011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3150 + ... + 5796.

It is an arithmetic number, because the mean of its divisors is an integer number (826176).

Almost surely, 2^11840031 is an apocalyptic number.

11840031 is a deficient number, since it is larger than the sum of its proper divisors (7988193).

11840031 is a wasteful number, since it uses less digits than its factorization.

11840031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731 (or 2728 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 11840031 is about 3440.9346114101. The cubic root of 11840031 is about 227.9209675294.

Adding to 11840031 its reverse (13004811), we get a palindrome (24844842).

The spelling of 11840031 in words is "eleven million, eight hundred forty thousand, thirty-one".