101223320 has 64 divisors (see below), whose sum is σ = 249523200. Its totient is φ = 36650880.

The previous prime is 101223319. The next prime is 101223329. The reversal of 101223320 is 23322101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101223295 and 101223304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101223329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166457 + ... + 167063.

It is an arithmetic number, because the mean of its divisors is an integer number (3898800).

Almost surely, 2^101223320 is an apocalyptic number.

101223320 is a gapful number since it is divisible by the number (10) 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 101223320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124761600).

101223320 is an abundant number, since it is smaller than the sum of its proper divisors (148299880).

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

101223320 is a wasteful number, since it uses less digits than its factorization.

101223320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 101223320 is about 10060.9800715437. The cubic root of 101223320 is about 466.0439335494.

Adding to 101223320 its reverse (23322101), we get a palindrome (124545421).

The spelling of 101223320 in words is "one hundred one million, two hundred twenty-three thousand, three hundred twenty".