4020443011305 has 80 divisors (see below), whose sum is σ = 8238114593280. Its totient is φ = 1837576637568.

The previous prime is 4020443011301. The next prime is 4020443011313. The reversal of 4020443011305 is 5031103440204.

It is a happy number.

It is not a de Polignac number, because 4020443011305 - 2² = 4020443011301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4020443011301) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 15517887 + ... + 15774843.

It is an arithmetic number, because the mean of its divisors is an integer number (102976432416).

Almost surely, 2^{4020443011305} is an apocalyptic number.

4020443011305 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4020443011305 is an abundant number, since it is smaller than the sum of its proper divisors (4217671581975).

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

4020443011305 is a wasteful number, since it uses less digits than its factorization.

4020443011305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262500 (or 262491 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 4020443011305 its reverse (5031103440204), we get a palindrome (9051546451509).

The spelling of 4020443011305 in words is "four trillion, twenty billion, four hundred forty-three million, eleven thousand, three hundred five".