11020020420 has 96 divisors (see below), whose sum is σ = 31115008512. Its totient is φ = 2914103808.

The previous prime is 11020020419. The next prime is 11020020421. The reversal of 11020020420 is 2402002011.

It is an interprime number because it is at equal distance from previous prime (11020020419) and next prime (11020020421).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11020020396 and 11020020405.

It is not an unprimeable number, because it can be changed into a prime (11020020421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4804794 + ... + 4807086.

It is an arithmetic number, because the mean of its divisors is an integer number (324114672).

Almost surely, 2^11020020420 is an apocalyptic number.

11020020420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020020420 is an abundant number, since it is smaller than the sum of its proper divisors (20094988092).

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

11020020420 is a wasteful number, since it uses less digits than its factorization.

11020020420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2941 (or 2939 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 11020020420 its reverse (2402002011), we get a palindrome (13422022431).

The spelling of 11020020420 in words is "eleven billion, twenty million, twenty thousand, four hundred twenty".