4123002040220 has 144 divisors (see below), whose sum is σ = 10632575237760. Its totient is φ = 1335339202176.

The previous prime is 4123002040177. The next prime is 4123002040231. The reversal of 4123002040220 is 220402003214.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4123002040192 and 4123002040201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6142079 + ... + 6780201.

It is an arithmetic number, because the mean of its divisors is an integer number (73837328040).

Almost surely, 2^{4123002040220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4123002040220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5316287618880).

4123002040220 is an abundant number, since it is smaller than the sum of its proper divisors (6509573197540).

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

4123002040220 is a wasteful number, since it uses less digits than its factorization.

4123002040220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638512 (or 638503 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 4123002040220 its reverse (220402003214), we get a palindrome (4343404043434).

The spelling of 4123002040220 in words is "four trillion, one hundred twenty-three billion, two million, forty thousand, two hundred twenty".