20413143231444 has 36 divisors (see below), whose sum is σ = 51796087158816. Its totient is φ = 6778508902608.

The previous prime is 20413143231359. The next prime is 20413143231457. The reversal of 20413143231444 is 44413234131402.

20413143231444 is a `hidden beast` number, since 2 + 0 + 4 + 1 + 314 + 323 + 14 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20413143231399 and 20413143231408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1077997674 + ... + 1078016609.

It is an arithmetic number, because the mean of its divisors is an integer number (1438780198856).

Almost surely, 2^{20413143231444} is an apocalyptic number.

It is an amenable number.

20413143231444 is an abundant number, since it is smaller than the sum of its proper divisors (31382943927372).

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

20413143231444 is a wasteful number, since it uses less digits than its factorization.

20413143231444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156014556 (or 2156014551 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 20413143231444 its reverse (44413234131402), we get a palindrome (64826377362846).

The spelling of 20413143231444 in words is "twenty trillion, four hundred thirteen billion, one hundred forty-three million, two hundred thirty-one thousand, four hundred forty-four".