11324040021 has 12 divisors (see below), whose sum is σ = 18693653472. Its totient is φ = 6470879976.

The previous prime is 11324040019. The next prime is 11324040023. The reversal of 11324040021 is 12004042311.

11324040021 is a `hidden beast` number, since 1 + 1 + 3 + 240 + 400 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (11324040019) and next prime (11324040023).

It is not a de Polignac number, because 11324040021 - 2¹ = 11324040019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11324039976 and 11324040003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11324040023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89873271 + ... + 89873396.

It is an arithmetic number, because the mean of its divisors is an integer number (1557804456).

Almost surely, 2^11324040021 is an apocalyptic number.

It is an amenable number.

11324040021 is a deficient number, since it is larger than the sum of its proper divisors (7369613451).

11324040021 is a wasteful number, since it uses less digits than its factorization.

11324040021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179746680 (or 179746677 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11324040021 its reverse (12004042311), we get a palindrome (23328082332).

The spelling of 11324040021 in words is "eleven billion, three hundred twenty-four million, forty thousand, twenty-one".