1013223220 has 24 divisors (see below), whose sum is σ = 2196407808. Its totient is φ = 392215200.

The previous prime is 1013223191. The next prime is 1013223221. The reversal of 1013223220 is 223223101.

1013223220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1013223194 and 1013223203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013223221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 816496 + ... + 817735.

It is an arithmetic number, because the mean of its divisors is an integer number (91516992).

Almost surely, 2^1013223220 is an apocalyptic number.

1013223220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013223220 is an abundant number, since it is smaller than the sum of its proper divisors (1183184588).

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

1013223220 is a wasteful number, since it uses less digits than its factorization.

1013223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634271 (or 1634269 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1013223220 is about 31831.1674306803. The cubic root of 1013223220 is about 1004.3884533059.

Adding to 1013223220 its reverse (223223101), we get a palindrome (1236446321).

The spelling of 1013223220 in words is "one billion, thirteen million, two hundred twenty-three thousand, two hundred twenty".