1102011020 has 96 divisors (see below), whose sum is σ = 2749420800. Its totient is φ = 366508800.

The previous prime is 1102011007. The next prime is 1102011023. The reversal of 1102011020 is 201102011.

It is a junction number, because it is equal to n+sod(n) for n = 1102010989 and 1102011007.

It is not an unprimeable number, because it can be changed into a prime (1102011023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116675 + ... + 125765.

It is an arithmetic number, because the mean of its divisors is an integer number (28639800).

Almost surely, 2^1102011020 is an apocalyptic number.

1102011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1102011020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1374710400).

1102011020 is an abundant number, since it is smaller than the sum of its proper divisors (1647409780).

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

1102011020 is a wasteful number, since it uses less digits than its factorization.

1102011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9159 (or 9157 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1102011020 is about 33196.5513269074. The cubic root of 1102011020 is about 1032.9088039914.

Adding to 1102011020 its reverse (201102011), we get a palindrome (1303113031).

Subtracting from 1102011020 its reverse (201102011), we obtain a palindrome (900909009).

The spelling of 1102011020 in words is "one billion, one hundred two million, eleven thousand, twenty".