20121043324 has 12 divisors (see below), whose sum is σ = 35489085184. Its totient is φ = 9981304704.

The previous prime is 20121043307. The next prime is 20121043337. The reversal of 20121043324 is 42334012102.

It is a junction number, because it is equal to n+sod(n) for n = 20121043295 and 20121043304.

It is a congruent number.

It is an unprimeable number.

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, 19803669 + ... + 19804684.

Almost surely, 2^20121043324 is an apocalyptic number.

It is an amenable number.

20121043324 is a deficient number, since it is larger than the sum of its proper divisors (15368041860).

20121043324 is a wasteful number, since it uses less digits than its factorization.

20121043324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39608484 (or 39608482 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20121043324 its reverse (42334012102), we get a palindrome (62455055426).

The spelling of 20121043324 in words is "twenty billion, one hundred twenty-one million, forty-three thousand, three hundred twenty-four".