20320344401204 has 48 divisors (see below), whose sum is σ = 37977781632000. Its totient is φ = 9492305760000.

The previous prime is 20320344401143. The next prime is 20320344401209. The reversal of 20320344401204 is 40210444302302.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320344401209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32053697 + ... + 32681495.

It is an arithmetic number, because the mean of its divisors is an integer number (791203784000).

Almost surely, 2^{20320344401204} is an apocalyptic number.

It is an amenable number.

20320344401204 is a deficient number, since it is larger than the sum of its proper divisors (17657437230796).

20320344401204 is a wasteful number, since it uses less digits than its factorization.

20320344401204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636864 (or 636862 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 20320344401204 its reverse (40210444302302), we get a palindrome (60530788703506).

The spelling of 20320344401204 in words is "twenty trillion, three hundred twenty billion, three hundred forty-four million, four hundred one thousand, two hundred four".