223103021020 has 72 divisors (see below), whose sum is σ = 516178039104. Its totient is φ = 80939760000.

The previous prime is 223103021003. The next prime is 223103021021. The reversal of 223103021020 is 20120301322.

It is a super-3 number, since 3×223103021020³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223103020985 and 223103021003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223103021021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 936070 + ... + 1149970.

It is an arithmetic number, because the mean of its divisors is an integer number (7169139432).

Almost surely, 2^223103021020 is an apocalyptic number.

223103021020 is a gapful number since it is divisible by the number (20) 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 223103021020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258089019552).

223103021020 is an abundant number, since it is smaller than the sum of its proper divisors (293075018084).

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

223103021020 is a wasteful number, since it uses less digits than its factorization.

223103021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214363 (or 214350 counting only the distinct ones).

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

Adding to 223103021020 its reverse (20120301322), we get a palindrome (243223322342).

It can be divided in two parts, 22310302 and 1020, that added together give a palindrome (22311322).

The spelling of 223103021020 in words is "two hundred twenty-three billion, one hundred three million, twenty-one thousand, twenty".