123301632 has 72 divisors (see below), whose sum is σ = 338813440. Its totient is φ = 39767040.

The previous prime is 123301631. The next prime is 123301669. The reversal of 123301632 is 236103321.

It is a junction number, because it is equal to n+sod(n) for n = 123301599 and 123301608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123301631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21219 + ... + 26397.

Almost surely, 2^123301632 is an apocalyptic number.

123301632 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 123301632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169406720).

123301632 is an abundant number, since it is smaller than the sum of its proper divisors (215511808).

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

123301632 is an equidigital number, since it uses as much as digits as its factorization.

123301632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5229 (or 5215 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 123301632 is about 11104.1268004287. The cubic root of 123301632 is about 497.7251753749.

Adding to 123301632 its reverse (236103321), we get a palindrome (359404953).

The spelling of 123301632 in words is "one hundred twenty-three million, three hundred one thousand, six hundred thirty-two".