101223312 has 20 divisors (see below), whose sum is σ = 261493680. Its totient is φ = 33741088.

The previous prime is 101223271. The next prime is 101223313. The reversal of 101223312 is 213322101.

It is a junction number, because it is equal to n+sod(n) for n = 101223291 and 101223300.

It is not an unprimeable number, because it can be changed into a prime (101223313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054362 + ... + 1054457.

It is an arithmetic number, because the mean of its divisors is an integer number (13074684).

Almost surely, 2^101223312 is an apocalyptic number.

101223312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101223312 is an abundant number, since it is smaller than the sum of its proper divisors (160270368).

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

101223312 is a wasteful number, since it uses less digits than its factorization.

101223312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108830 (or 2108824 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 101223312 is about 10060.9796739681. The cubic root of 101223312 is about 466.0439212717.

Adding to 101223312 its reverse (213322101), we get a palindrome (314545413).

The spelling of 101223312 in words is "one hundred one million, two hundred twenty-three thousand, three hundred twelve".