223201031020 has 72 divisors (see below), whose sum is σ = 515479163472. Its totient is φ = 81121138560.

The previous prime is 223201030999. The next prime is 223201031047. The reversal of 223201031020 is 20130102322.

It is a super-3 number, since 3×223201031020³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223201030985 and 223201031003.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4751287 + ... + 4798033.

It is an arithmetic number, because the mean of its divisors is an integer number (7159432826).

Almost surely, 2^223201031020 is an apocalyptic number.

223201031020 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 223201031020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257739581736).

223201031020 is an abundant number, since it is smaller than the sum of its proper divisors (292278132452).

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

223201031020 is a wasteful number, since it uses less digits than its factorization.

223201031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48751 (or 48738 counting only the distinct ones).

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

Adding to 223201031020 its reverse (20130102322), we get a palindrome (243331133342).

The spelling of 223201031020 in words is "two hundred twenty-three billion, two hundred one million, thirty-one thousand, twenty".