2011321424 has 30 divisors (see below), whose sum is σ = 4533171354. Its totient is φ = 861994560.

The previous prime is 2011321423. The next prime is 2011321439. The reversal of 2011321424 is 4241231102.

It can be written as a sum of positive squares in only one way, i.e., 1719595024 + 291726400 = 41468^2 + 17080^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2011321396 and 2011321405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011321421) 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, 1281947 + ... + 1283514.

Almost surely, 2^2011321424 is an apocalyptic number.

It is an amenable number.

2011321424 is an abundant number, since it is smaller than the sum of its proper divisors (2521849930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011321424 is a wasteful number, since it uses less digits than its factorization.

2011321424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565483 (or 2565470 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2011321424 is about 44847.7582940329. The cubic root of 2011321424 is about 1262.2939281865.

Adding to 2011321424 its reverse (4241231102), we get a palindrome (6252552526).

The spelling of 2011321424 in words is "two billion, eleven million, three hundred twenty-one thousand, four hundred twenty-four".