101223432 has 80 divisors (see below), whose sum is σ = 292723200. Its totient is φ = 32646240.

The previous prime is 101223407. The next prime is 101223433. The reversal of 101223432 is 234322101.

101223432 is a `hidden beast` number, since 10 + 1 + 223 + 432 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (101223433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17569 + ... + 22607.

It is an arithmetic number, because the mean of its divisors is an integer number (3659040).

Almost surely, 2^101223432 is an apocalyptic number.

101223432 is a gapful number since it is divisible by the number (12) 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 101223432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146361600).

101223432 is an abundant number, since it is smaller than the sum of its proper divisors (191499768).

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

101223432 is a wasteful number, since it uses less digits than its factorization.

101223432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5088 (or 5075 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 101223432 is about 10060.9856376003. The cubic root of 101223432 is about 466.0441054363.

Adding to 101223432 its reverse (234322101), we get a palindrome (335545533).

The spelling of 101223432 in words is "one hundred one million, two hundred twenty-three thousand, four hundred thirty-two".