4043120011020 has 144 divisors (see below), whose sum is σ = 12394909642752. Its totient is φ = 1066688092800.

The previous prime is 4043120011003. The next prime is 4043120011057. The reversal of 4043120011020 is 201100213404.

4043120011020 is a `hidden beast` number, since 4 + 0 + 431 + 200 + 1 + 10 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4043120010984 and 4043120011002.

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, 19605445 + ... + 19810595.

It is an arithmetic number, because the mean of its divisors is an integer number (86075761408).

Almost surely, 2^{4043120011020} 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 4043120011020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6197454821376).

4043120011020 is an abundant number, since it is smaller than the sum of its proper divisors (8351789631732).

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

4043120011020 is a wasteful number, since it uses less digits than its factorization.

4043120011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206332 (or 206327 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 4043120011020 its reverse (201100213404), we get a palindrome (4244220224424).

The spelling of 4043120011020 in words is "four trillion, forty-three billion, one hundred twenty million, eleven thousand, twenty".