223021031020 has 48 divisors (see below), whose sum is σ = 489291062400. Its totient is φ = 85279443200.

The previous prime is 223021030963. The next prime is 223021031033. The reversal of 223021031020 is 20130120322.

It is a junction number, because it is equal to n+sod(n) for n = 223021030985 and 223021031003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1844980 + ... + 1962139.

It is an arithmetic number, because the mean of its divisors is an integer number (10193563800).

Almost surely, 2^223021031020 is an apocalyptic number.

223021031020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223021031020 is an abundant number, since it is smaller than the sum of its proper divisors (266270031380).

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

223021031020 is a wasteful number, since it uses less digits than its factorization.

223021031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807258 (or 3807256 counting only the distinct ones).

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

Adding to 223021031020 its reverse (20130120322), we get a palindrome (243151151342).

The spelling of 223021031020 in words is "two hundred twenty-three billion, twenty-one million, thirty-one thousand, twenty".