2124321404 has 12 divisors (see below), whose sum is σ = 3818037384. Its totient is φ = 1033453584.

The previous prime is 2124321403. The next prime is 2124321413. The reversal of 2124321404 is 4041234212.

It is a self number, because there is not a number n which added to its sum of digits gives 2124321404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124321403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7176614 + ... + 7176909.

It is an arithmetic number, because the mean of its divisors is an integer number (318169782).

Almost surely, 2^2124321404 is an apocalyptic number.

It is an amenable number.

2124321404 is a deficient number, since it is larger than the sum of its proper divisors (1693715980).

2124321404 is a wasteful number, since it uses less digits than its factorization.

2124321404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14353564 (or 14353562 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2124321404 is about 46090.3612917061. The cubic root of 2124321404 is about 1285.5039288844.

Adding to 2124321404 its reverse (4041234212), we get a palindrome (6165555616).

The spelling of 2124321404 in words is "two billion, one hundred twenty-four million, three hundred twenty-one thousand, four hundred four".