20413231344 has 120 divisors (see below), whose sum is σ = 62401577472. Its totient is φ = 6177951360.

The previous prime is 20413231313. The next prime is 20413231379. The reversal of 20413231344 is 44313231402.

20413231344 is a `hidden beast` number, since 204 + 1 + 323 + 134 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1302177 + ... + 1317759.

Almost surely, 2^20413231344 is an apocalyptic number.

20413231344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20413231344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31200788736).

20413231344 is an abundant number, since it is smaller than the sum of its proper divisors (41988346128).

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

20413231344 is a wasteful number, since it uses less digits than its factorization.

20413231344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16435 (or 16426 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 20413231344 its reverse (44313231402), we get a palindrome (64726462746).

The spelling of 20413231344 in words is "twenty billion, four hundred thirteen million, two hundred thirty-one thousand, three hundred forty-four".