320223223100 has 72 divisors (see below), whose sum is σ = 775685019648. Its totient is φ = 113736772800.

The previous prime is 320223223081. The next prime is 320223223109. The reversal of 320223223100 is 1322322023.

It is a super-2 number, since 2×320223223100² (a number of 24 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320223223109) 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, 3337724 + ... + 3432323.

Almost surely, 2^320223223100 is an apocalyptic number.

It is an amenable number.

320223223100 is an abundant number, since it is smaller than the sum of its proper divisors (455461796548).

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

320223223100 is a wasteful number, since it uses less digits than its factorization.

320223223100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770115 (or 6770108 counting only the distinct ones).

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

Adding to 320223223100 its reverse (1322322023), we get a palindrome (321545545123).

The spelling of 320223223100 in words is "three hundred twenty billion, two hundred twenty-three million, two hundred twenty-three thousand, one hundred".