11020102020 has 36 divisors (see below), whose sum is σ = 33427643340. Its totient is φ = 2938693824.

The previous prime is 11020102013. The next prime is 11020102031. The reversal of 11020102020 is 2020102011.

It can be written as a sum of positive squares in 2 ways, for example, as 6506680896 + 4513421124 = 80664^2 + 67182^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11020101993 and 11020102011.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30611215 + ... + 30611574.

Almost surely, 2^11020102020 is an apocalyptic number.

11020102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020102020 is an abundant number, since it is smaller than the sum of its proper divisors (22407541320).

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

11020102020 is a wasteful number, since it uses less digits than its factorization.

11020102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61222804 (or 61222799 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 11020102020 its reverse (2020102011), we get a palindrome (13040204031).

Subtracting from 11020102020 its reverse (2020102011), we obtain a palindrome (9000000009).

The spelling of 11020102020 in words is "eleven billion, twenty million, one hundred two thousand, twenty".