1124340021 has 40 divisors (see below), whose sum is σ = 1924306560. Its totient is φ = 640874592.

The previous prime is 1124340011. The next prime is 1124340043. The reversal of 1124340021 is 1200434211.

1124340021 is a `hidden beast` number, since 1 + 1 + 243 + 400 + 21 = 666.

It is not a de Polignac number, because 1124340021 - 2⁵ = 1124339989 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1124339976 and 1124340003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1124340001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 246655 + ... + 251171.

It is an arithmetic number, because the mean of its divisors is an integer number (48107664).

Almost surely, 2^1124340021 is an apocalyptic number.

It is an amenable number.

1124340021 is a deficient number, since it is larger than the sum of its proper divisors (799966539).

1124340021 is an equidigital number, since it uses as much as digits as its factorization.

1124340021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4975 (or 4966 counting only the distinct ones).

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

The square root of 1124340021 is about 33531.1798331046. The cubic root of 1124340021 is about 1039.8384922398.

Adding to 1124340021 its reverse (1200434211), we get a palindrome (2324774232).

The spelling of 1124340021 in words is "one billion, one hundred twenty-four million, three hundred forty thousand, twenty-one".