1020323302220 has 48 divisors (see below), whose sum is σ = 2155179882240. Its totient is φ = 405749313984.

The previous prime is 1020323302199. The next prime is 1020323302223. The reversal of 1020323302220 is 222033230201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1020323302192 and 1020323302201.

It is not an unprimeable number, because it can be changed into a prime (1020323302223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15457727 + ... + 15523593.

It is an arithmetic number, because the mean of its divisors is an integer number (44899580880).

Almost surely, 2^{1020323302220} is an apocalyptic number.

1020323302220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020323302220 is an abundant number, since it is smaller than the sum of its proper divisors (1134856580020).

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

1020323302220 is a wasteful number, since it uses less digits than its factorization.

1020323302220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70382 (or 70380 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 1020323302220 its reverse (222033230201), we get a palindrome (1242356532421).

The spelling of 1020323302220 in words is "one trillion, twenty billion, three hundred twenty-three million, three hundred two thousand, two hundred twenty".