20121413344 has 48 divisors (see below), whose sum is σ = 40434130800. Its totient is φ = 9854546944.

The previous prime is 20121413287. The next prime is 20121413353. The reversal of 20121413344 is 44331412102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271722 + ... + 337750.

It is an arithmetic number, because the mean of its divisors is an integer number (842377725).

Almost surely, 2^20121413344 is an apocalyptic number.

It is an amenable number.

20121413344 is an abundant number, since it is smaller than the sum of its proper divisors (20312717456).

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

20121413344 is a wasteful number, since it uses less digits than its factorization.

20121413344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66235 (or 66227 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20121413344 its reverse (44331412102), we get a palindrome (64452825446).

The spelling of 20121413344 in words is "twenty billion, one hundred twenty-one million, four hundred thirteen thousand, three hundred forty-four".