1020223020 has 96 divisors (see below), whose sum is σ = 2982389760. Its totient is φ = 260282880.

The previous prime is 1020223007. The next prime is 1020223021. The reversal of 1020223020 is 203220201.

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 = 1020222987 and 1020223005.

It is not an unprimeable number, because it can be changed into a prime (1020223021) 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, 162459 + ... + 168621.

It is an arithmetic number, because the mean of its divisors is an integer number (31066560).

Almost surely, 2^1020223020 is an apocalyptic number.

1020223020 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 1020223020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1491194880).

1020223020 is an abundant number, since it is smaller than the sum of its proper divisors (1962166740).

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

1020223020 is a wasteful number, since it uses less digits than its factorization.

1020223020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6295 (or 6293 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1020223020 is about 31940.9301680461. The cubic root of 1020223020 is about 1006.6960692453.

Adding to 1020223020 its reverse (203220201), we get a palindrome (1223443221).

The spelling of 1020223020 in words is "one billion, twenty million, two hundred twenty-three thousand, twenty".